From what I hear, all the games are made using some kind of software that already has pre-made models for characters, buildings, objects, and poses. So, he just take a model and choose a good pose for it and it shouldn't take too long.
This shows that you have no idea what the process is, which is fine, as you've obviously no experience in this thing that it sounds like you're an expert on (don't worry, most of us have no experience in it either, it's not actually a dig at you). Suffice to say, it's a lot more involved than just taking some pre-made X, Y, and Z, putting them in poses, moving on to the next image, etc., etc.
Just a random snippet from Google, and I have no idea how up to date this is (and also bearing in mind the relative animation length):
How long does it take to animate CGI? A 60-90 second CGI animation takes, on average, between 8-10 weeks to render. The exact time is dependent on how simple, complex, long and short the animation itself is.
Gives a hint of an idea of the timescales that could be involved. From what
I hear, and I have a little bit of indirect experience that confirms this, it's the rendering that is pretty much the longest part of making this pie. If you take the number of animations and still-image renders that make up each episode, that quickly starts to add up (and that's not accounting for writing, coding, testing, editing, re-testing, etc., etc.).
