It's seemingly laziness on the artist's part. The last updates have been "sorry guys, taking long because the one artist who's holding everything up has a COLD." Nigga really can't draw spaceships because he has the sniffles? Lazy fucking faggot.
However, it's also pisspoor management from the top-down. He's hedged a disproportionate amount of the workload (if not in terms of pure labor, in terms of hindering progress) onto someone who is not pulling their weight, but he also has personal friendships with the people working for him so he won't want to rock the boat by pressing them on their laziness or hire people to "replace" his friends. It causes deadlock.
Why he can't work on multiple projects at once to help keep the wheels moving is beyond me. Longform content creators like Joon the King will work on smaller projects as well as bigger releases so he can keep content coming out without stagnating. Jon's been working on a DarkSydePhil video, which is going to take forever due to all the research, so in the meanwhile he's put out Cryaotic, QuantumTV, and Bam Margera videos within a month. Hour long videos, too.
Fredrik is mismanaging the project and instead of taking a serious look at his failures, he's trying to parlay into easier, lazier content instead. "Pay me to drink tea!"