I agree with you that any security implementation will hurt the web and can be a very dangerous thing that will likely fail.
My statement is a fact. Politicians and large corporations WILL use incidents like these to push their legislation forward.
I'll agree that as a whole security on the net is lousy, but drastic measures like this are an equally lousy method of dealing with it. No one should be surprised when laws get passed that limit freedoms on the internet in response to these actions. Cause and effect.