This weeks Mishpacha newspaper (Hebrew) had a number of very strong opinion pieces against the Edah. Basically they said that they have become like the boy who cried wolf with so many protests and when a really important issue comes up the protest will have no meaning.
They also mentioned something that I posted a while back (Who is a real kannoi? ), that the kanaus of the Edah is not defined by Torah. They quoted a protester who said he was willing to die to prevent chillus shabbos. That is a very nice sentiment but is anti-Torah. The Torah says וחי בהם, a person needs to take care of themselves. Only the 3 cardinal sins are יהרוג ועל יעבור. In fact, here it is on an even lower level, it is not that someone is forcing him to be מחלל shabbos, but rather he is trying to prevent some stranger from being מחלל שבת. Therefore, there is absolutely no basis in halacha for a person to put himself in a life threatening position to prevent a stranger, or be מוחה for chillul shabbos.