This is good for some. But if you drop the cards and they get mixed up you are pretty much done for
with the trick unless you want to take a good chunk of time trying to get them unmixed and you might
mess that up if you are not careful. I have never given a trick 1 star in fact my lowest star is a 4
until today.
So you drop cards in front of your audience. I call it dumb, not numb.
Yes, sh.. can happen, but are you angry about the trick or about yourself?
I can make a looooong list of effects that will give you a hard time if you drop them (especially during a performance).
Rating a trick because of your fault is like pointing the finger onto others, don't you think?