I'm probably in the minority on this as well, but I was also not a fan of the burnt zombies. I've never burned a person or animal, but wouldn't their flesh continue to burn to the bone and kill them? Seems odd that it just burnt out and they were still moving. Not nearly enough to ruin the moment for me though.
I once had a possum carcass to dispose of from the side of the road near my house. Dog kept getting into it, and I decided it would be easier to burn it in a fire I already had going than to dig a hole. HUGE mistake. Took hours. And hours. Flesh doesn't burn so fast as you might imagine...just crisps up on the outside. Had to keep breaking away the crust.
That said, I agree with Brent...the brain and eyes would have cooked away to nothing in no time.