Yes we are that lazy

on a serious note any lvl 75 will tell you its the only way to level your second/third class as there just isn't enough quests to do it any other way. While your there ask them just how sick of dogs/butters they are......
And just when I thought I was finished with dog meat and butterflies I decide to go change class again.........
I vote for "lazy". There are only two reasons for going after the dog meats. 1. To sell them. 2. So you can burn through a bunch of daily quests using DailyNotes and DRTs. In the past, I've used the second option and still have 11 stacks of dog meats stored away on my shortstuff toon "for later".
You *do* realize that it's much faster leveling to take those toons to TOSH-E and party them up with a decently-equipped 70-72 lvl toon that knows how to kite the bugs. It's so easy that even Paz can do it. If he doesn't trip over his own feet, that is. :p
Get partied up, pop XP and TP pots, drag out an XP/TP pet, and/or if your guild has the buff towers, use those, and go to town. If you're a big spender, have a few Superior XP and TP charms handy--they'll fill up quickly.
It makes no difference to speak of what level the kiter is. The lower level toons will still suck up tons of XP/TP. You might have to reset and break/reform party every so often, but keep it up for a few hours and those toons will be leveled quickly, without having to step into the Inferno Gardens.