In my opinion- yes, in classic we used to use 2h and we were quite tanky.
Don't get me wrong I love my Enh Shammy but I also love to tank while I hate by healer and range dps- being over and over only one role in one spec for years- not so much fun, is it? And I know ppl that love Enh playstyle, but they wont main it because there is no tank spec.
And I started to wonder if it's just me and my friends or there is more ppl that think the same way.