I've been budgeting myself explicit "slop removal" time. In fact I'm in it right now one window to my right here.
I still get a big win from AI on the net, but you do need to budget some time to clean up. I'm still on team "read every line".
In fact this is a case where I deliberately deferred some review because I was a blocker for another team. Now that I've got something to them I'm going back and I'm going to eat a bigger chunk of debt than I normally would, but it's worth it for unblocking the other team sooner. AI has made tech debt easier to take out, in all senses of that term.
It's totally worth doing. Especially since it only takes one or two manual improvements before you can just say "ok, replicate this new pattern throughout the codebase. Go."
It matches my experience which is that LLMs greatly benefit from well factored code, but are not particularly adept at creating such code.
Much like most human developers I suppose!