They use the camera in an expressive or poetic way so rarely that when they do
bust out a heartfelt flourish (like the long, slow camera move that reveals the
Guardians in their spaceship engaged in a sing - along, or the «wipes» that reveal the reality that Thanos» illusions hide, or a climatic fight between Thanos and multiple heroes) it's as if somebody had briefly sparked a dull wedding reception to life
by going out on the dance floor and demanding a song with a backbeat.