I'm not sure I follow your logic
For example, if I'm sick of eating at Subway, I don't hope for the temporary closure of franchises
I just stop eating there
I don't think you actually said you want Marvel to fail but the 'logic' that some people have a hard time understanding is how you can get 'sick' of something that demands 2-3 hours of your time only 2-3 times a year. Like how frequently do you have to eat at Subway to get sick of it? If you're only eating there a couple times a year, and they also have the option of burgers, tacos, and fried chicken, would you still get sick of it?
Everyone's entitled to their own opinion it's just kind of hard to understand, especially in the era of TV streaming where all the services are competing putting out tons of great shows that you can binge watch. And like I alluded to above it's one thing if they start losing their touch but Marvel so far not only have they always put out top quality movies but they continuously mix it up with new characters and themes. I guess some people could have a hard time keeping up with it all but generally all their movies work well enough as stand alones, or at least within their own collection (Iron Man 1-3, Guardians 1-2, etc).