I've read that the changes other than the big controversial ones (like no buildings, towns vs. cities) all come from one or two major competitive franchises.To the OP, only one remark : I don't think Firaxis made changes for the sake of competition with other games :
It reminds me a lot of those videos about Bethesda GS and Emil Pagliorulo/Todd Howard. There was some speculation that Red Dead Redemption 2 came out at a point in Starfield's development where there was a hard sci-fi frontier/farming faction, and due to RDR's popularity, someone decided to "cowboy up" that faction. This speculative point was used to exemplify the impression that basically Bethesda's leadership was phoning it in. That Starfield was a totally original IP and that a lot of its content was pretty shallow plagiarizing, like, not inspired by, but just copy and pasted over without modifying it for context.
I just get really strong vibes that Civ 7 fell into this type of management death spiral. Like, greedy execs who are buddies with very rich management that have no incentive to work hard anymore, at a point in their life with families and other priorities. Maybe COVID had something to do with it. The WFH disruption seems to be part of Starfield's development stalling, maybe Civ 7 fell of its original track due to remnant COVID/WFH issues.
Either way, it really does feel like we got a minimum effort product. The concepts are half-baked, shallow. The new features seem plunked directly from competitors, like directly. They don't come together well. And then the UI being so terrible. And then how HMS Revenge wasn't even an original model.
The complaint with Starfield was that it felt like there was a team of maybe 15 people at BGS actually making the quests and the game proper, working 6 hour days, while the entire rest of the game was outsource to foreign game asset shops. Civ 7 feels a lot like that. Like, how many people actually are working on it right now that it's taking so long to get updates out?
In this forum alone, there have been a dozen excellent concepts for how to improve the religion system, for instance. Firaxis right now thinks they can go quiet, slowly work on token bullet point "we fixed that, we listened to you see, we listen, here look at the auto-explore, we're listening" and that will be enough to eventually keep charging $30 DLCs for a couple of short civic trees and a building or two? Like, they should have been fixing the religion system from day one of launch and patching in free updates to prove that they are serious about correcting whatever it was that went wrong in development.
The narrative right now is "I'll buy it in a year or two after the first expansion fixes it". That's all Firaxis has left in terms of goodwill for this game. They need to be trying to deliver.
The correct business decision is to implement free updates for the massively terrible features, to build and maintain goodwill going into expansions.
Instead they'll "address community concerns" with slow drip band-aids, then expect that we're going to fork over $45 for half-baked fixes to the bad game systems in the expansion. No, I'm not going to pay $45 for a non-crappy UI if it's gated as DLC.