i don't think the question is chewing wrong or right. i believe the question is if the tournament director says no chewing should the chewer be ejected if caught.

my answer to this would be yes for the simple fact if some one heard no chewing and done so anyway, what are they saying forget you your rules don't apply to me.

now this would apply to any rules being broke, say you eject someone for chewing, but you also said no sitting matside and there some one is sitting matside well you would have to eject them as well.