yeah, but like...results where I live suggest one thing, Results on the other side of the country suggest another thing, Results on the other side of the planet also suggest something different. How can you say for sure? especially when alot of tournaments are between 10-30 entrances and many of those entrances are repeated characters...So many ways that the results while they say alot...they say nothing at the same time. At least nothing conclusive.
Because trends occur outside of regional influences. For example, there are like 7 Bowser players. People can argue about whether or not Sonic is good; Sethlon shows that Sonic can do well, but it may just be Sethlon playing ahead of the metagame. For Bowser, there is no argument: he is at least a formidable character. With so many bowsers doing well and winning tournaments, we can gain conclusive evidence that Bowser is
good. This is further solidified based off of another obvious fact: Melee characters are more successful than Brawl characters right now. This isn't necessarily because Brawl chars are worse, but people already KNOW the melee characters. It's hard to go against a lifetime of Fox experience. For Bowser, essentially an unplayed Melee character drastically changed, to do so well suggests that the character can actually hang with some of the top tiers.
Individual instances mean nothing; it's all about trends. It's why you can shake your head at anyone that says "Oh man, this character is BROKEN! Look at player X / tournament result Y". It's entirely possible that the single instance they are giving you is ultimately as relevant as me beating a 5 year old with Roy. Even if I JV 5 stock that kid with Roy multiple times, Roy is still bad.
But in a tournament setting? People want to win. They will play to win, and you will see people adapt to form a metagame. From that you can get reliable trends, such as "Bowser has many successful players in varying regions". Simply because he isn't winning in your specific region means nothing. It wouldn't mean anything if all the bowsers came to your region and lost, either. It's the fact that a
trend is occurring in multiple areas.
We can learn lots from these trends that are basically indisputable. Pikachu? He's unpopular and likely low tier. Squirtle? Likely to remain low tier. Fox? One of the top secondaries. Mario? Mario is mid tier at best and will never amount to anything substantial in any normal circumstances. People have TRIED to win with Mario and
failed. Mario will either be reinvented by the players or designers or remain a 'bleh' character.
You can say "but what if...", but the data doesn't care. The longer time goes on, the more information we get. The more information we get, the more solid these trends get. When trends don't
change, you have a guaranteed truth.