Seems to be that way IMO. We have heirlooms for almost every slot now except a neck and ring, and I think boots/gloves. Now they are saying they might introduce TANKING heirlooms, AND leg heirlooms lol?
Kind of getting a little ridiculous? Leveling is not hard, nor does it take a long time. I'm leveling a hunter with 0 heirlooms right now and have gotten to 32 in 2 days, with only playing a few hours a day. That's kind of stupid as is, but wait! Lets tack on like 60%+ experience gained! yay! oh wait that's pointless.