Couldn't it be said that Classical Deists also asserted that one could have a relationship with God to a certain extent? They seemed to rule out that God had revealed any religions, but at the same time, didn't rule out that God could communicate with a person individually.
That would be revelation as well.
Deists have to look at why things are set up the way they are, why no divine intervention? The only apparent answer I can find is, in order to maintain our free will, which means free from divine influence. That would also mean no "divine providence" which most early deists believed in. Why free will if the outcome is set?
Most so called modern deists have corrupted the core concept of deism, an absolute laissez faire God, in an effort to proselytize and make deism diverse and "all inclusive". Thus the plethora of hyphenated deisms.
Classic-Deism, Ceremonial-Deism, Humanistic-Deism, Intuitive-Deism, Moralistic/Therapeutic-Deism, Christian-Deism, Continental-Deism, Modern-Deism, Monodeism, Pandeism, Process-Deism, Provisional-Deism, Panendeism, Polydeism, Scientific-Deism (oxymoron), Deism-Is-Lost-In-The-Shuffle-Deism. Truth has fallen so far behind the current primal goal of inclusiveness, it's out of sight, and all that's said is, "that's your truth, not mine"--all in the name of attempting to make the core concept of deism irrelevant.
Nothing is more incongruent than "Christian"-deism. Some might want to associate Jesus with deism somehow, but Jesus wasn't a deist after all. So far I haven't heard of anyone trying to put Islamic-deism out there, but give 'em time.