No. The problem is the guy giving it from so far away without a clear view that they were both grabbing shirts.
As both Hansen and Moyes said on MotD, it was not a penalty. The linesman shouldn't be making that call unless he can see the entire incident. Of course, if he can see the entire thing, then he should give it no problem, but here he didn't.
The fact is, as most pundits have said, Norwich were robbed yesterday by poor officiating - of certainly a point and potentially all three if you consider we lost our heads after the penalty. This happens all the time. It's not your boys fault, you should just enjoy the fact that you get the rub of the green

. It happens all the time to us and we just have to shrug our shoulders and move on. It's a shame because we played really well and ended up looking like we got hammered when that was absolutely not the case.
The real point of the complaints is just how bad the Prem officials are. It's shocking. This is hardly the first time. As you say, there were a couple of borderline incidents that went our way earlier on too, but to constantly have officials making big calls, getting them clearly wrong, and the consequences of them being wrong being the difference between relegation and staying up, or even a CL spot or Europa League, is totally unacceptable. There is too much at stake to have professionals doing a distinctly semi-professional job so often.