Infraction: 9. Do not sign your posts.
Message to User:
Ending your post with "regards" seems to me to be against the spirit if not the letter of rule 9. Please stop doing it.
Arkad, while I can't provide exact numbers/formulae for you on why these talents are huge, I can say without a doubt that they are vital to a great BM raiding build: Longevity and Go for the Throat. Reducing the cooldowns of Beastial Wrath and pet specials is a very big deal, not to mention having enough focus with which to perform those attacks. Also, your suggested build adds more to Frenzy than is currently recommended.
While some BM hunters may disagree with me here, I have not been able to successfully substitute other dps talents for Invigoration. In my experience, the 53/11/7 build offered 15 more dps but only over short boss fights. When a fight lasts longer than a couple minutes, invigoration comes in handy unless you are guaranteed stellar mana regen. I have yet to find a 54/12/5 build that calculates to better damage over boss fight time than the 55/11/5 I currently use. That goes for the recent found gushing over arcane shot builds. It's a great shot for BM since it's mobile and does good damage per mana, but not at the expense of other talents.
I strongly suggest you either download Shandara's worksheet or log your gear into Rivkah's Zeherah's Hunter DPS Analyzer so that you can try different specs out. Those are indispensible tools that can really help you maximize your role. I plugged your suggested build into my current setup in version 92PTR of the worksheet and saw a 415 dps loss. That's unbuffed, so imagine the effect in a raid situation. Please check those out.
I hope that helps.