speed of thought gets a bit overhyped. It's basically just the uppermost limit of what your reaction speed would be, nothing more nothing less
It is, it's just funny to me because Mook is acting as if "Speed of Thought" is a huge deal in and of itself when it's only the case for people fast enough to think faster than the average human...
Like Macht's spell working on that is worthless because most Frieren Mages and warriors aren't all that fast or quick thinking meanwhile Kisame is a damn near Kage level monster that got speedblitzed by 5th Gate Guy before he can finish his thought and A is obviously faster than that.