This makes sense to me. After a hundred years only the creative work (of any kind) itself is left - it either remains interesting or not. A hundred years is about three generations, time for a fashion to go out of style, to return in granny-liked-it nostalgia, then for that quaintness to fade and the work at last to stand or fall on real merit.
Occasionally, in that hundred years a work or artist will be anointed as "classic" or "historically important" and this can disguise for a while the fading of public interest.
Samuel Johnson by Joshua Reynolds - public domain with addition