I work for a government contracting company and we do a lot of work that has to be accessible, hence using flat colors and vector-based 2D animations with snappy motion, etc.
I use Motion exclusively for our work and I’m running circles around people using AE for the same types of projects.
No dis to AE, but with so many features piled on, it is just plain clunky compared to Motion for this type of work.
Also, government agencies tend to make decisions by committee, and we get a lot of very inconvenient and poorly timed change requests. Motion makes dealing with that fairly easy provided you set up your projects correctly.
In addition I can accomplish fairly complex projects on an aging MacBook, which would grind to a halt if I was using AE.