Well, at the frequency he posts, it's no wonder you can't expect the same level of variety and stuff from other animators who take months to upload. I'm surprised he keeps up the amazing quaility as is with how frequent he releases videos
Agreed - I think the quality of what the artist puts out is amazing considering the frequency. Of course, like Julia_Revali said, there has to be a price/compromise for the speed in which the animations come out, and because of that, they can't modify or make all character models unique to their original design, I assume. (I'm learning Blender, so I don't know how it really is just yet)
And plus, compare to other artists, Z1G3D's character model isn't even considered modified from my perspective. Sure, they got some nice bubbly asses, but I don't think that's a minus point for most people. Lastly, everyone has their own taste, so some artists making characters extra thicc I think is entirely up to them, they are the ones creating things based on their own spin/style, after all.
I'm just glad that these creators/artists are still making things and we get to enjoy their final products. (Especially since I get them mostly free, like from here. Can't complain lol)