Well, you got the vestibule, you got the learning, what’s not to like?
Given only two such mentions . . . and very . . . tersely . . . put, at that . . . not terse in a negative sense, just very briefly stated in passing . . .
I don’t know that one would be wise to build a doctrine on them by a long shot.
When it comes to nonBiblical source stuff, I expect a lot of multiple source confirmations WITH Holy Spirit, in my spirit confirmation before I want to put much weight on it.