I think there are too many whiners.
Keep in mind this is a childrens game that happens to be competitive. Kids need ways to win besides sitting there for 40 minutes hoping not to misplay. They don't design these cards for the adults who play, but the kids who like having fun.
It doesn't matter what it is, anything that is competitive and allows more "mature" audiences will be taken too seriously by some, and will result in questioning the game's integrity.
I don't mind losing to a donk or T1 deck when it happens because in the end, winning that tourney won't get me into a club, earn me a discount at WalMart, or make me a superhero. It's a hobby that I've put a bit of money into and enjoy playing. When people get bent out of shape because they lost turn 1 or 2, then what does that accomplish besides making themself look like a horse's rear end.
Donks are fun when you get them and suck when you lose to them, but just because they happen doesn't mean the format sucks. By far, this is the most diverse format I've heard of and enjoy seeing several different decks. To be honest, Machamp suffers late game while it thrives early. Every deck has it's flaws and just because some are amazing in the first 3 turns doesn't make them "bad for the game."