It's broken. Respec your pet and put that point into something else for now.
Good to hear that you're having fun with the Gorilla, but if you've had him long enough to appreciate Volley, and it's not level 70, you might be doing it wrong!
It should only take 1.5 hours to get a Gorilla from 65-70 if you're bold with your AoE'ing. Take your Gorilla out to The Heap (directly south of Area52). Put it on Defensive, turn off smack, make sure that growl and Thunderstomp are on autocast. Stay on your mount and round up 6-8 ethereals, dismount, hit volley and profit. The mobs out there spawn extremely fast, and are in tight groups, so it's easy to round up a lot and kill them in 2-3 vollies. It's a lot of fun. I went from 30% revered with the Consortium to 78% in about 2 hours- Granted, I had a really lucky streak with keys, but I had over 250 of their insigias to turn in.
After it hits 70, go back to doing whatever you're enjoying. You'll love it more with a pet at full potential :D