The folks at Studio TRIGGER (Kill la Kill, Little Witch Academia) have a long and impressive history within the anime industry, from some of Gainax’s biggest productions to TRIGGER’s own debut feature anime film, PROMARE.
I think the essence of TRIGGER is that the directors and the teams make what they think is fun and interesting.
When I first watched PROMARE I described it to someone as “extremely TRIGGER” and “even more extremely Hiroyuki Imaishi.”