Refs:
https://trac.wildfiregames.com/ticket/3987
https://wildfiregames.com/forum/topic/82754-alpha-26-pre-releaserelease-candidate-build-testing
https://code.wildfiregames.com/D4210
Lots of talking since the ticket was created and not much happening.
I am on the side of random should be random.
Also I guess the civs have evolved over the years and most civs don't share that many buildings anymore, so I think this shouldn't be a concern (for the main game).
It would ofc be nice to have advanced random option but for now this is an improvement.