I haven't come remotely close to killing anyone save maybe a mage or non-soul link warlock in a single HoJ since people started getting 700+ resilience. The reason for the MS request is because with that same HoJ stun I cannot even drop a priest, shaman or druid healer to 75% without getting super lucky on every hit. After which the healer can immediately top themselves off again.
I know it's been said before but it really is just a product of your gear. If you don't want to be killed instantly then you can't get lots of +damage enchants and gems, you have to sacrifice some and pick up stam and resilience instead.
As for kiting, it's already been pointed out that every class that would want to kite the paladin already has a means to remove Hand of Freedom except druids. It's a non-issue.
I saw a post on the PvP forums a while back that asked an interesting question: How do you want to die?
Rather than getting mad that you die within a single HoJ, how would you prefer a ret paladin kill you? Assume for the moment that I've already won the fight. Pretend I outplayed you, or if you prefer, that I have better gear or I jumped you before you were ready. How do [b]you want a ret paladin to kill you?
Because currently, they have many more ways they can't kill you than ways they can.
They can't kill you by wearing you down because they don't have MS, they don't have mana drains and they don't even have a snare or gap closer. Most importantly, they will run oom if they're forced to use any utility.
They can't kill with a stun lock in the traditional rogue sense because they only have two cooldowns, repent and HoJ, to use. They have no interrupts or disarms, no way to lock out opponents. Not to mention that the community hates being stun locked anyway.
They can't reliably cc a healer and kill you like a mage, warlock, or even a druid can.
All they can do is bubble and hope everything crits. Annoying? To be sure. Almost as annoying as BM hunters immunity to snare and stun, but it's also ALL they can do. They have no other dangerous tactics. No lethal combinations besides lucky crits. No game-changing utility. No mechanics to block out or negate healers. LoH cannot be used in the arena while BoP and Bubble are both on long cooldowns. It's been shown many times before that classes that have shorter cooldowns with slightly less powerful abilities are far more powerful. Their single greatest utility is cleanse, which at the moment is only particularly useful against polymorph and strangulate.
So yes, at the moment, Death by Crit Chain is a stupid way to die, but paladins have been asking for the class to be redesigned since LONG before wotlk and blizzard has made at best, half-hearted attempts. The class is still burdened with ridiculously long cooldowns as far as arena goes and a very narrow set of abilities.
Basically every 1v1 fight can be decided before it begins. "If bubble is up, I win. If not, you win." Thrilling pvp.
Death by HoJ stun and Crit is the only way the class works at the moment. If they remove that without redesigning the functionality of the spec, then what you're effectively asking for is the complete removal of all Ret paladins from the game. Amusing, but hardly ideal and not likely to happen. No, if you want a solution, you have to join the rest of the ret paladins back at the drawing board.