The first episode has scketchy animation as it is. The ideas are what made it watchable. How do you spend four years on a four episode series, and not even get episode two finished?
From the sound of it, it seems like it was a mix of it switching studios, no money to make it a priority when the studio could instead work on something that made them money, and covid basically forcing their hand into NEEDing money even more-so.
No time for real art when you need food and shelter for your family. No energy to push yourself even harder when life is crumbling around you (even moreso in japan given the shit work conditions of animators)
I don't understand why youre being so standoffish when all of the info is available directly from the workers themselves and the director of both studios that worked on this. (And sure i guess they could be lying, but come on)
I hope your day gets better and youre able to find a show to enjoy.