Not utterly disappointed, but certainly underwhelmed by Wingspan to begin with. Oceania + removing ravens fixed a lot - mostly around difficulty playing birds, overpowered birds, boring endgame egg-laying.
Had a similar thing with Viticulture, it just felt unfinished. Tuscany fixed that too. Turns out I'm a sucker for expansions.
If you haven't tried it, I'd recommend Cascadia for a couples game. Also, Tuscany adds some pleasant complexity to Viticulture .. Not that you were asking for recommends, I just couldn't resist..