I don't know what bc1 did with the newest update, but for the first time I played Civ5 on Linux without experiencing any crash, That has never happened before, with or without EUI. Update 1.29a makes Civ5 playable on Linux, at least for me.
Looks awesome but the newest version v1.29beta44 is not compatible with the general quality of life modpack anymore: https://www.reddit.com/r/civ/comments/338v5k/bnw_quality_of_life_modpack_v5/
Units are not able to be moved at all. Neither through clicking nor selecting M to move.
I trialled it down to an incompatibility between the two InGame.lua files between the modpack and this DLC but I don't know enough about lua to fix it myself. However version v1.28 works fine.