Fans just don't understand how comps work. It's not a statistical comparison. They're not saying this guy is going to have the same exact career as this guy. It's a comparison of his tools and talent level. His body looks like him, he hits like him, he throws like him, etc. They're saying if everything comes together this is who he can be. Baseball people understand it's very rare for everything to come together because baseball is a really really hard game to play and a lot of shit happens along the way to making it to the big leagues and staying there.