Well, if they remove enough metal to give the coin sharp definition it sure can. Every little grain of silver dust which was filed off weighs something and it adds up...
The coin in MS condition should weigh 13.48 grams and that will naturally go down as the coin is circulated (or was circulated) and the metal wears away. Now, when I look at a coin which has great details, (actually too-good-to-be-true details) in some high areas that should be worn, anyone would begin to wonder. Then, if the coin weighs 13.40 grams or less I'll pass it up. It's just too risky. However in the 1836 example you showed us it looks like someone took a small diameter metal pipe and struck it when placedover the clasp thus adding incuse definition to the worn clasp. Maybe a .17 caliber shell casing?
In order to get that sharpness it had to be whittled and when you whittle there are shavings...
Take care
Ben