Something to bear in mind.
FXS seem to much prefer “specific” over “generic”. So, you get particular great people, not just a general great person, and they give you specific works of writing or art or whatever. You get individual religious units - Apostles, Gurus, whatever - not generic religious pressure. And you get specific governors - Magnus, Whatever - rather than more abstract Governors - eg A Steward.
FXS’s approach has pluses and minuses. As much as some of the specifics annoy me, particularly Governors, I suspect it actually does make the game more dynamic.
Rock bands are very specific, but that fits with FXS’s model I guess. They are dangerously close to my most hated Mechanic - Corporations. But. I’m willing to get on board with this unit. They’re very well executed from what we’ve seen, will maybe round out a bit more the “late game faith” units (really, just the naturalistic), and hopefully won’t be overwhelming.
Really, my only concern is that they don’t become some massive meta of their own, but that seems unlikely. I suspect they’ll be more like Warrior Monks. Kinda cool. Something to play around with if you really want to. But otherwise, you can basically ignore.
What I really want is the core of the game to work better. That doesn’t mean we can’t have things like Rockbands. Fun is fun. But the core game is what matters. So far, it seems like GS will at least significantly improve the core game mechanics (don’t know about AI), although I suspect a few things will still be not quite right although modable (eg unit balance, particularly Heavy Cav, Anti-Cav and Seige, and mid and late game hammers). So, yeah, assuming everything else is okay, Rockbands are cool.
Although. Maybe a bit Baby Boomer... I’m surprised there aren’t a few different models - eg rapper, dj, diva, jazz band...