Why should I care? It was supported before Epic bought them and Epic decided to axe it. My experience with Psyonix post-Epic is far worse than pre-Epic, which is exactly what the thread is about.
There's a difference in semantics whether they violently "axe it" or carefully decide "Not supporting linux" any longer. If you do not care about the difference then because you do not understand the decision any better than I do. Arguably, the decision for selling-out will have a similar motivation as the one against linux, so I find your before/after distinction a possibly misleading false dichotomy.
There is no indication that the motivation is the same for bandcamp. Pretty much everyone in this thread is agreeing that they see bad omens, sure. I just don't agree that Epic is to blame for that.