There's aggressive and then there's reckless, you can take aggression too far and while you will wind up with a huge stack quickly sometimes, you can and will often bust out just as fast. In the 2013 WSOP
ME there was an amateur who was from Belgium or someplace around there, I think Dick Van Luijk was his name, he was the chip leader for quite a while then IIRC shoved something like 80BB with a weak King and was knocked out.
One reason that beginners are advised to only play premium hands is that it helps keep you out of marginal situations post-flop when you don't yet have good skills developed for those situations. An important skill, which is hard, is being able to lay down that premium hand that you opened the pot with if there's good evidence post-flop that you're outgunned.
Some pros do very well with a LAG style but it takes a lot of skill and tends to have higher variance also.