I don't think that is historically accurate.
From what I've read "high" vs. "low" culture changes over time, very often based on aesthetics. Brahms wrote both high and low art by the late 19th-century audience's standards. Today it's all just Brahms, who is a "classical composer", hence all "high art."
Most importantly, there is no reason at all to believe that it cannot change again in the future. E.g., Brahms goes viral and gets treated as some kind of KPop sensation. Then we get some young punk doing cosplay as a steampunk Musikwissenschaftler claiming that Hungarian Dance No. 5 no longer slaps as high as it used to.
Today's superhero movies = yesterday's westerns. "I can't believe they made so many of these and just how bad most of them are."
I could be wrong obviously, but I would be extremely surprised if Adam Sandler movies have centuries of longevity to them; I think even people who like his movies will acknowledge that they're not spectacular films.
Of course the "test of time" test isn't always an indicator of quality. There are plenty of old books that I had to read that I thought were terrible, and moreover there are plenty of modern music that I think is fantastic that no one else will really care about.