Haven't made them in years (I hate boiled eggs and just make them for others).
But as I recall the eggs have to be really cracked. My guess is you just did not break the shell and underlying membrane enough. I'll bet Jkath really whacks them with the spoon.
Just think of the egg as the teacher who did not believe the dog ate your homework and I'm sure the results will be fine.
They do make a nice presentation and always made deviled eggs that way.
Try a couple. Eggs are fairly cheap and you can always eat your failures, ich poo spit, I hate those suckers.