Not that difference from most of main Kamen Rider crew honestly, they will getting good over time.
My take on sentai is it's humor are so childish that aren't going well with older audience and those cluster fuck mecha, like seriously who like those mess of robot.
I love the clusterfucks and I'm certainly not a child. Totally fine for them to not be for you, but acting like no one could like them outside of kids is really fucking silly.