I was impressed with Holland...he showed some mobility, more than I ever remember. But the answer your question...yeah, he is that much better. It was against the Rams, sure, but he is better IMO, very clearly.
I think Felix could do the same thing, but I will just say how impressed I was by the way Murray hit the hole. He showed some power and did not slip down like Felix has a penchant for.
The Rams are bad, but the Cowboys did what you are supposed to do to bad teams...put them away.