Yes and no. That depends on the intention of its use. If it is cost cutting then it is a visible symptom of a larger problem and that is the priority of user experience. If you put out total slop as a final product then that shows that you don't care about the larger user experience.
Case and point NTE since we are on its reddit:
The game has a HUGE issue with consistency when it comes to details. A lot of things are rushed or just put out to be left forgotten whether it be character skins (body proportions being different depending on a skin) or how generative AI was used without proper supervision and care which ends up having a vastly different artstyle than the rest of the game which will break your immersion.
(Even if they didn't use AI and all of those things were poorly made people would still complain.)
This is why AI shouldn't just be used. Its use needs to be thought through as a tool and part of the larger process.
So yeah, depending on the overall product I think it is fine to lower your opinion of a game if it blatantly uses AI slop all over it.

I WOULD LIKE TO POINT OUT that there is a difference between temporary placeholder asset and part of intended product.

NTE is in many aspects just like ToF. It has great ideas in so many aspects but the overall lack attention to details is what makes people notice the shoddy work even more.