Stuff like Joker also helps differentiate DC from Marvel — although Marvel has started branching out in its own way, with Doctor Strange in the Multiverse of Madness, Eternals, Moon Knight and WandaVision, Phase 4 and beyond looking weird and fun as hell.
Oppositely, Warner Bros. allowed Todd Phillips to make a bold movie that he wanted to make, and whether or not you like the movie, seeing more filmmakers being allowed to take big swings with their unique visions is ultimately a good thing, especially for the comic book movie genre, a genre which is currently driving the industry.