All good points here about MHA's criticisms. As for me, I still adore the series very much and read it weekly. For all of its flaws that I see, at least it hasn't fallen so far off the deep end......yet. That, at least, is why I'm still sticking to it.
It's true that the academia parts are pretty tedious to get through, but as far as handling its ensemble cast, I think it does a better job of handling that than the Big 3 did back in their heyday. It's not perfect, but I think it's satisfactory, imo.
I'm of two minds about plot progression in MHA. It's true that past series were better at moving the plot along, such as Naruto. But that came at the expense of the rest of the cast. Meanwhile, MHA still remain at maintaining its ensemble-focused appeal. This of course, has its drawbacks, which stalls the plot at certain points, and as such some arcs feels inconsequential as a whole. So....you can't really have your cake and eat it too.
The current manga arc has a high possibility of bringing back a beloved character in the fanbase, which connects this one to a previous arc, if you could call it that.