WotLK why does the hunter use RS HC ring for pvp?

[sOyMalOaLWOw123]

I have a doubt regarding the class in terms of PvP, why is the RS HC ring used, if the reputation one gives a burst buff and has 'better stats' besides, if with the gear and talents you have the hit cap, why overcap?

[Mitzen]

From what I gathered when friends were discussing this.

You forgo the AP proc for constant agility difference https://wotlk.cavernoftime.com/item=54576 provides over https://wotlk.cavernoftime.com/item=50402.

[Shred]

Iif the reputation one gives a burst buff and has 'better stats'

They have the same stats, and every single value is worse.