Prereleases can be fun but they can also be awful. I had someone get up and “go to the bathroom” in the middle of a game in a pre-release only to go to the judge’s table and write down that he won. I’ve also had someone threaten to stab me during a pre-release for playing an aggressive BR deck. I would still be playing magic if it weren’t for its players who are, imo, the worst in the board gaming community.
Yes they run everything and have everything they want but do they know that? It is really hard to tell what revanchists actually believe and what they only say they believe. Political factions have made some incredibly weird, irrational choices in the past.