Answer
Truth 1 - The fact is, it is God the Father who went way beyond (not, simply “a bit”) these passages when He declared Jesus the Creator:
“He (God the Father) said…..but as to the Son, ‘Your throne O
God,….’and ‘…You, Lord (Yahweh), at the beginning founded the
earth, and the heavens are works of Your hands’” (Heb 1:7,8,10).
[It is true, as Alex Balilo said, “Jesus attributed creation to God”. But then, God the Father attributed creation to Jesus, as is clearly evidenced in the above verses]
Truth 2 - Actually, the Scripture gives “active agency in creation” to Jesus Himself and not to God the Father!
And this is directly in contrast to the OP’s “Bottom line 1”!
Explanation
When the Scripture says that God created everything “through”, “in” or “for” Jesus, it doesn’t mean that God used Jesus as a passive tool to create something.
We are not to understand it as when a scientist looked at some microbes “in” an electron microscope or as when someone looked at a distant object “through” a binocular. This is not the concept that the Scripture projects.
In fact, God created everything “through” or “in” Jesus means Jesus “actively created” everything “on behalf of“ God the Father. This is what Scripture says.
An illustration:-
“the Pharisees heard that Jesus made more disciples and baptized
more than John (though truly Jesus Himself did not baptize, but
His disciples)” (John 4:1-2).
Here, the “active agency” in baptizing belongs to “His disciples” and not to Jesus!
Jesus baptized “through” His disciples. It doesn’t mean that Jesus “used” them as a “tool” to baptize.
It simply means “His disciples” baptized “on behalf of” Jesus.
Another Example:-
“Jesus answered them and said, My doctrine is not Mine, but of the One
who sent Me” (John 7:16).
Here again, “the Jews marveled” (verse 15) at the sayings of Jesus. They heard the doctrine from Jesus, though according to Him, it actually belonged to God.
So, the “active agency” of speaking and spreading the doctrine belonged to Jesus, not to God.
So, we can say, God gave the doctrine “through” Jesus.
That is, Jesus spoke and spread the doctrine “on behalf of” God.
Agency in the Old Testament
We see in Genesis chapter 18 that “Yahweh appeared to” Patriarch Abraham (verse 1).
How?
Abraham, one day at noon (verse 1), saw “three men standing by him” (verse 2). Abraham immediately identified One as “My Adonai” (verse 3) proving that one of the three men was Yahweh Himself with Whom Abraham had a long conversation (verses 22, 26, and 33). The other two were angels (Gen 19:1).
Now, we read in Genesis 19:24:
“And Jehovah rained brimstone and fire on Sodom and Gomorrah, from
Jehovah out of the heavens”.
I see Yahweh on earth acting as the active Agent of interacting with humanity on behalf of Yahweh of the heavens.
Dia = Through/By
Now, the reader may have a doubt that none of these passages use the word “through”. That is right, but the concept cannot be missed.
However, here is another illustration with ”dia”:
Evidence # 1:-
“Truly the Son of Man goes as it has been written concerning Him, but
woe to that man through (dia) whom the Son of Man is betrayed!”
(Mark 14:21).
Here, the actual agent of betrayal was Judas Iscariot! Nobody else!
Judas was not in some form of sedation. He was a “thief” (John 12:6) and as the Treasurer of the Twelve, he had begun to steal money (same verse).
So, Judas did it deliberately and hence he was the “active agent” here on behalf of Satan (Luke 22:3).
Evidence # 2:-
If this is not enough, take another example from the Scripture using “dia/through”:
“There was a man sent from God; his name was John. He came for a
witness, that he might witness concerning the Light, that all might
believe through (dia) Him” (John 1:6-7).
We know very well that John the Baptist was NOT a passive agent in witnessing concerning the Light. He was shouting in Judea actively witnessing for Jesus!
Here again, the active agent is John the Baptist through whom the witnessing was being done!
More than Agent
But Jesus is more than a mere agent. He is “our great God and Savior” (Titus 2:13). Hence He said:
“All things which the Father has are Mine” (John 16:15). “And all My
things are Yours (Father’s), and Yours are Mine” (John 17:10).
“all should honor the Son, even as they honor the Father. He who
does not honor the Son does not honor the Father who sent Him” (John
5:23).
Conclusion
It is perfectly alright hermeneutically to declare Jesus the Creator on behalf of God the Father Creator. In fact, the active agency of creation is ascribed by the Scripture to Jesus.
The “concern” of the OP could be a dangerous one; something similar to what “naskh” in Islam means; that is, one verse is nullified and superseded by another verse. But the Bible doesn’t teach such a thing. The entire verses are taken into consideration!