They didn't believe
A few verses earlier we are told of the group:
And their words seemed to them as idle tales, and they believed them
not. (Luke 24:11)
Not the route you'd take to Galilee
The most direct route to Galilee would be through Samaria, but many Jews avoided the Samaritans and didn't go this way (e.g. see John 4:9); the next best ...