There's a form of recency bias at play. We tend to compare recent middling movies with the ones we remember from the past, which tend to be the exceptions. But trust me, there were some very shitty blockbusters in prior decades as well.
Give it a decade or two, and people will remember the '20s as a decade of amazing blockbusters. I mean, heck, we had Barbie and Oppenheimer in theaters at the same time just a few weeks ago. The fact these two movies were released the same weekend is gonna blow people's minds in twenty years.