Stop lying to yourself, the art is sadly average... lightyears from the original version.
That stuff was bloody amazing...
Even if we never experienced it in the first place, this would still NOT qualify as top notch.
Plus, regardless of who deserves the actual blame for it.
I'm sure everyone's relieved the dev didn't just give up.
Hope the game will have more content depth, now that it's not being carried along by the godly art.
Well, I won't say it's not likely my personal taste applying here, I like the style of the art more than a lot of other VNs here, but I am not an expert of art, so I can't judge if the quality itself is actually above average or not.

In my eyes it has more personality than the similar looking (I think it's often called 'Honey Select' style or even just assets from those games?) stuff of many visual novels that aren't japanese.
Well, blame is a strong word, I don't even blame the artist, I think it was a really unfortunate amalgamation of things that maybe should have prevented the cooperation between Dev and original artist in the first place. What I was saying was meant to state that the Dev didn't just willy-nilly decide to change the art style and had no good option to just keep the old art around. Of course having 2 different styles (one of which was highly favored by most players it seems) would be off-putting itself.
I 100% agree with the 2nd part of your post, though.