I dont agree.
The hackers have already jb the new iPad with 5.1.
Tethered jb the ip4 on 5.1
Work underway on the 4s jailbreaks.
Apple in my opinion love the cat and mouse games.
I don't think that they like it, they just can't help it, actually they've tried to employ those hackers several time without success at this point where the new iPad is already jailbreaked few hours after a dev had hands on it, I think they might want to give up the cat mouse game, but you know Apple, giveup is not a word they know so i'm sure that they are now focusing on how to patch all exploit in the next coming iOS. Luckily for us, the more they patching, the more new exploit they are creating somehow