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Well just because it’s noticeable doesn’t inherently make it bad.
You mean cgi? It’s pretty unanimously agreed upon that it’s bad. >

Crap, here I am thinking it's happening so much and is just being accepted >

It’s used frequently to save money. It’s a lot easier to use cgi instead of drawing. The downside is that it’s really hard to make look good since it’s jarring compared to the drawn animation. There’s a lot of backlash on its usage,  but if it’s done well then no one complains cause they probably didn’t even notice.