While not the most intricate of plotlines, the MCU has in large part been character development arcs with power. The reason why they've connected with so many IS the characters, their journey, their flaws and defects. DC gets its ass kicked because it has consistently not made you give a shit.

Yes, based on the genre, it is inherently not ALL character driven. But much of it is. That these old crows can't appreciate that aspect is THEIR shortcomings, not the movies'.