ya first off I have to say something about your problem with stuns and knock backs. TOO BAD! get over it and move on, they aren't going anywhere. And if you just take some time to learn to pvp better you won't have a big issue with them. seriously.
Grind solo being too long? it should take a good amount of time to get that gear. otherwise everyone would have it way too quick. Its supposed to be a grind, thats what makes it worth it.
you're even complaining about premades? I mean have you ever played another MMO with pvp? Ofcourse there is going to be premade,and yes they are going to win against pugs more times than not. thats because they are using teamwork, and your team isn't. You deserve to lose. plan and simple. go make your own premade team, join a guild that has one. or just move on and deal with it. This is in every MMO.
Those 3 were the biggest problems I had with your post. Its like someone who wants to raid complaining that guild with enough 50s to raid shouldn't be allowed because they can get through the content easier than your pug for a operation. or the boss interputs your casting or makes you have to move from one spot too often. its supposed to be challenging. step up your game or play something else.
just my opinion