If you have a car that is really broken, the last thing you want to do is do the paint-job then start on the serious repairs. In this case the paint-job is the broken quest system and the internal parts (that are being worked on first) is the stuff behind the scenes you don't see. Point is, the internal parts need to be fixed before you go on the upper layers because it's like a pyramid and it's pointless to fix the top layers if you have to completely rework the groundwork.
Sadly this assumption that devs don't care about front-end stuff, is something that will always exist, not everyone is knowledgeable enough to understand what happens behind the scenes, really for now just be happy it even works. He is doing what the original devs should have done long ago, it's a lot of heavy restoration going on.
