The stage that you mention by It's A Small World used to have a comedy show where they would do funny versions of Tangled and Beauty And The Beast. And the reason why that show never came back was due to low audience attendance. But that show is an example of when
Disneyland was starting to go downhill in it's entertainment. But you know what show DCA never brought back to Avengers Campus again? The Hawkeye stage show and they should bring it back especially since it was a Christmas themed show and it was a hit but it was never seen again since. But I agree with you that Disneyland needs to have more shows and entertainment and a daytime parade would fit in perfectly