There really wasn't much a responsible US foreign policy could do in Egypt, or really any of these countries during their popular uprisings, other than talk to the dictators behind closed doors about exercising restraint or stepping down, and of course making sure Americans are protected. Obama did all of these in Egypt.
It seems to me that the other option in Egypt was to either go Full Iran, where we just keep our distance, or go Full Bahrain, which is where we arm those in power to further brutalize their people until they give up (I wrote about that here
I think we handled Egypt as well as can be expected. I haven't heard much in the way of effective rebuttals to that, just blanket criticism from the usual suspects and some of the usual nonspecific pablum.