I got a better idea, I played WoT and my "initial response" to the premium tanks that owned me is that it is P2W.
Which premium are you referring to? All the low tier stuff is meh whether it's premium or not. It's far more likely that premium tanks owned you because they were played by players who have thousands of battles under their belt and thus have more experience.
Before the Marder II nerf a while back I was totally destroying games in my kitted our Marder II (not a premium tank). That's because in lower tier battles many players are new to the game and I as vet who knows the game mechanics, the maps, where to hide, where to advance, etc., have the absolute upper hand. Can't check right now, but I am pretty sure that my high count is 12 enemies destroyed in one game and it was with a Marder II.
Lots of folks play lower tier premium tanks to grind experience to convert to free experience, so there is a good chance that you were up against seasoned players even in lower tiers.