Borges was not wrong about the endurance, and the reasons. I'd guess that few under-30 year olds, even here, know of the movie, and even fewer have seen it.

But then, Borges' reasoning would apply to most anything not made recently. There's a very small cadre of writers/creators aware of anything not produced in their lifetime.

(Furthermore, Borges could not guess at the time that Citizen Kane would be anointed as one of the show pieces of "the seventh art" for a few decades - a fate that could probably have been bestowed upon a few other contemporary movies, but was not.)