Well, I would argue that they are most dangerous than a miter saw for x-cutting: the saws have a tendency to self-feed - which requires proper blade selection and technique; the saws have a long throw inviting users to put their hands in the wrong place and the saws tend to have a largely unguarded blade (compared to mitersaws that all seem to have self-retracting shrouds now).
Probably about as dangerous as table saws and for similar reasons, except swap "self-feed" for "kickback".
-Mark