they are fine to eat raw, as long as you are not eating them in large quantities which can lead to stomach upsets etc. (although I gather the same would probably apply to cooked mushroom too).
It is one of the reasons Canada won't allow Quorn to be sold here, because of the allergic reactions and stomach upsets people have had from it.
I think as long as you were okay with them before, then it should be no different now, but there are people who's digestive systems have problems with them.