I don't buy anything this dude is saying.
Toei dropped the ball big time during the beginnings of DBS. Yes they are getting better but its still a little sloppy. The guy in this video is defending the animators which i don't think people are even really mad at. People understand how hard it is to make this animations. The issue is Toei not giving the animators proper timelines and resources to finish projects.
Toriyama jumped into the pool after dipping his toe in.
He made a movie where he had a lot of time and resources them jumped right into a weekly series. He should have done what most animes do and complete a season with a set budget and timeline, release it, then take another 4-6 months to complete the next season and release that.
In the age of Video on Demand and streaming, the weekly episodic formula is obsolete and has NEVER been a good formula for anime's that require a lot of detail.
People would gladly wait 4-6 months for a solid 15-20 episodes of solid animations.
Anyway Toei doesn't get a pass, they've been doing this for a long time and they should know better.