That is a purposeful choice that myself and some other developers have taken. The way the MSFS rendering engine works, objects spinning at high speed will develop a fuzzy and jittering halo around them. To me, this is infinitely more distracting to a real world pilot than the static spinner with a blurred material. I appreciate the feedback, and if the majority of the community says they prefer the way it is in the default aircraft, then I will reconsider my opinion, as I always want as many of my users to be happy as possible.