I doubt it. For example, I know who lost the 1919 World Series and why, only because of the highly unusual circumstances surrounding it. I don't remember who won.
I'm not sure this is a meaningful example. Most people probably don't know off the top of their head who won the 1916 World Series either, or 1931, etc. Doesn't mean the 1916 or 1931 champs are any less legitimate than other years. It's just a generic memory effect which applies to everything (although probably less so to the modern game, as compared to 100 years ago, due to media, video, marketing, expansion and league/franchise stability, etc.).
1919 and now 2017 may be the only less-than-legitimate WS champs in the general public's eye for obvious reasons (and I suspect 2017's illegitimacy may still fade with time). Beyond that, I guess baseball historians might discount the WW2 years, when many players could not participate due to military service. But as of now, there are no cheating allegations about 2020, and very few notable players opted out of competition this year. The weird circumstances of 2020 everywhere will be remembered in the public consciousness, but it seems doubtful that the legitimacy of its baseball WS champ will be viewed the same as a cheating scandal or world war.