I think it's trivially easy to make a case for a PAC vote. If you enjoy the style of wrestling he does then you could argue he's been very good for almost 20 years, in a world where there are a ton of high flying guys PAC's stuff looks better than the vast majority of wrestlers doing similar stuff and he has a lot of range past that - he traded in most of his high flying for more power based offense in his most recent run and is still having awesome matches. On top of that he's shown a lot of range during his career being excellent as both a heel and a face while working everything from American TV to the indies to DragonGate and working very well both as a singles competitor and in tags/trios.
With all that being said it's obviously fine to not vote for him(hell, I didn't vote for him) but I wanted to make his case because I want to say, yes PAC(and a bunch of other wrestlers) benefited at least somewhat from recency bias or people not being super familiar with older stuff, but when people act like these wrestlers votes are illegitimate or requiring some sort of special belief to rank them as highly as you did they're being at least as ideological as the people who's votes your rallying against.
By the way, you obviously don't need to believe in AEW supremacy to vote for PAC since he received votes in 2016 and when I was in 8th grade I went from knowing maybe 2 Radiohead songs to thinking they were the greatest band in the world in the span of like an hour - not because other people told me they were but because I listened to Kid A for the first time and it completely blew my mind. Sometimes people will think something is great that you don't not because they have some weird special belief or recency bias but because an artist speaks to them in a powerful way
