Well in my honest opinion, I feel that a tank that can't hold hate against a summoners pet, doesn't know their class well at all or isnt paying attention to aggro. Every time I go in a party as a tank I don't feel offended nor insulted that a summoner/arcanist is using their tanking pet...

How is it "gimping" his DPS if he's covering a less than desirable tank? He felt like the tank that group was not doing so swell from what I've read so he pulled out Titan Egi to save the day. What's the harm in that? If everybody could do their job/class well then this wouldn't even be an issue but that's not likely ever going to happen. I commend Huntington for staying on top of the game before an inevitable failure.