Only thing I've seen about Concord that is actually pretty good is the character select screen has pretty good animations and lip synching. The models themselves are cringey, but the techinically aspects are actually solid. I dont think there's too many shooters where that screen is that polished.
As for 8 years dev time, thats the nature of gaming. All or nothing with big budgets and tons of time. In 8 years you could had gone from SNES to Dreamcast, and a game company during that time could had made 3 or 4 games for a franchise across 16, 32, 128 bit eras. 8 years is also basically the entire 360/PS3 era.