It's not skills knowing "Oh, should I pull the mummy with a huge-ass AoE stun into my team, or should try to pull the ad carry with litttle-to-no health instead?
And if not, said person will fail at any and every other champion.
Yes, shit happens, but it's the potential of the grip that's ridiculous. And, as I said; dodge 99.9% of the grabs, get grabbed once and GG. You can not expect someone to dodge 100% of anything; to play completely flawless, that is just silly. Yes, mistakes should be punished, no doubt. But the only counter-play to Blitz is playing defensively, which is just sad and promotes for really, really boring game-play(my opinion, obviously). And no, I'm not talking EG-defensive, I'm talking hide behind everything possible as squishies-defensive.
@Dark Brown Eye: Biased much because you play Blitz? Gosh. Anyways, one word for you: Vision. Most important thing in the game. Blitz get's an oracles and clears out the wards, it's not too difficult to get a good grip on someone when you're in the fog of war, or even behind a wall.
Blitz excells in mid/late-game where teams roam and fight for vision, where small skirmishes take place. And late-game and single grip will result in either a baron or a ton of turrets.