Instead of furiously typing to respond, I'd recommend you sit back for a moment and try to comprehend what I've said. Nothing in that quote references Pursuit of Justice.
If you had read my post in its entirety, and my original post in the thread, I think you'd understand that the talents you're trying to argue about are preference at best. That said, again, what I specifically stated there had nothing to do with Pursuit of Justice. But since you're so stuck on that argument point, one could argue that Pursuit of Justice could be a threat talent since it allows you to arrive at your target faster and allow you to start building threat sooner.
However, the point I was trying to make is that you are arguing with him that your 25-man group should cover Vindication's necessity. And then you proceed to suggest that he talent into crit instead. Which is a threat talent, when threat should already be covered by yourself and your 25-man raid just the same as the AP debuff. If your group and/or leader chooses not to take competent Rogues or Hunters, then that's a problem with your group. Just because you have to compensate for that problem does not mean everyone else does.
Your example is irrelevant. The only unpredictable variable is human error. Attempting to compensate via an assortment of talent and/or gear selections has become first nature here on Warmane. Everyone specs into their raid buffs. Everyone builds their gear sets based on the precedent that there won't be someone else to cover it (whether it be threat for tanks, hit rating for dps, etc.). That is a fundamental flaw in your approach to the situation here. People who approach the game in this way either A) haven't the slightest clue what they're doing, or B) their group isn't stable in any way.
Just the same as human error, there is the possibility of perfection in execution as well. For those players who are able to compensate for human error with their own capability within the game, there is absolutely no reason to support them getting a talent when their own capability nullifies the usefulness of that talent.
TLDR: A recent quote from myself on another thread. Different context, but the point remains the same.
I get that there are people who are solely concerned with being right. And that you are one of those people. I'm sorry to inform you, but nobody really cares if you are right on the internet or not. The only thing of importance is that correct information be dispensed to those seeking it, not misinformation and petty bickering from individuals who think they know everything.
While I agree, it's not that great, it's also not RNG. While speccing into crit is RNG. Some people like to avoid having to deal with RNG as much as possible. I know you already know this about Reckoning, but I think it's still worth mentioning for the benefit of others. Reckoning can be a problem outside of ICC, and on Lady Deathwhisper and Sindragosa (assuming parry haste works). Even if the parry haste isn't working, people should still remain wary of it, should it ever be fixed.
http://wotlk.openwow.com/talent#sZA0tAbuMGsIufdxfM0b
This is what I've been using to tank for my guild at the moment. Threat is a non-issue for me, since I have some top-tier Hunters and Rogues to take advantage of (in addition to the fact that I've never really had an issue threat-wise anyway, unless my favorite feral is in the raid). So I don't spec into Conviction or Crusade (I love Crusade, but fortunately not necessary for me). DKs are almost non-existant in our group, so JotJ is necessary (it does work, just doesn't display visually for some reason on certain bosses). The extra point in Spiritual Attunement is to partially compensate for our lacking sources of Replenishment.
This is a 10-man raid environment I'm speaking of at the moment, though. For larger raids with allied guilds, if I tank, I'm more commonly on my DK. And in the case of my paladin being necessary, she does have a second spec to spare for talent differences.
My point is that there are cases that do validate a change of talents.