Indeed, but not a very honourable one. The one being protested cannot even fight back. For example. Realm A has 50 nobles. 15 of them protest, the Ruler is thrown out. 35 do not (supporters of the ruler) They can do nothing to help the ruler. Where as in a proper battle then support is required. This way only a small groups of nobles need to be willing to protest. Not the whole realm. And there is nothing the victims (ruler/supporters) can do about it. Plus you look at it in a SMA, where in the history of a monarchy did you ever see a King get protested out of office, with out an armed conflict of some sort? I cant think of one. especially in the time frame that we are playing in.
In the last two days, 8 nobles protested only once, one (thus a total of 9 different nobles out of 21) protested twice.