I'm one of them liking to see them back for several reasons and it's not about the big grind doing dailies. However to me, with limited play time it will take forever to earn a higher standing with a faction. I have time for one thing at a time, running dungeons or doing dailies.
Blizzard removed the tabards because they wanted people back into the world and that is actually a good thing. However, what I often see is a lot of people around indeed, but all doing their own thing. To my experience doing dailies is rather lonely. I can't speak for all of course, but hardly anyone teams up.
Another reason that I've found for myself is I don't have time running dungeons while needing to do the dailies in order to build up reputation needing to eventually spending my valor points. So I'm missing the learning experience fighting my toon in a group setting and max my performance. With dailies it's just one on one fights most of the time, plus there is the lack of the social aspect doing things group wise.
If one has just one character, then eventually things could be achieved I suppose, but most of us have more than one and I seriously don't like to go through all the dailies twice or even more times.
I think, like it is now, only the ones with a lot of time to play have the opportuniy to earn reputation fairly easily and run instances, compared to the ones with less time to really enjoy this first patch of this expansion. For us casual players, not speaking for all of course, it's become more of a chore than it's ever been.
Hence I would like the reputation tabards back, but to make it fair with weekly cap or so. And the hard core or "old skool" players always have the choice of grinding rep as it is now.
I'm not after any arguing about this, I just wanted to get this off my chest. Responds are welcome.