The quality of the art would be good or bad by different standards depending on how much dough they put down. Young Justice would have very simple art by comic standards, but it's excellent by animation standards. Conversely, adapting a Young Justice comic onto a TV screen where like two parts of each panel move in very ugly, simplistic fashion looks a whole hell of a lot worse than merely simplifying the art style to embrace the animation medium. That's why motion comics suck. The 'motion' in them is terrible by any animation standard.
Now, if they want to do that kind of thing in Comixology's reader or some other online comic reader, fine. That's a comic presented in a comic format as a comic. The meager motion and voiced narration would just be some new bells and whistles thrown into the mix. But motion comics on Netflix and Hulu are presented as if they're just another animated presentation, which is misleading because they're unbelievably awful by the standards of animated presentations.