I'm really liking the domains, but I'm dissatisfied with Turn Undead as a class feature for all clerics. I see no reason why every deity in the universe would or should care about the undead... It makes perfect sense for the Life and Light domains, much less so for the others.
Yeah, I not only hate that every cleric gets turn undead, but I also hate the actual execution of the turn undead power. Oops.
I agree. Apparently the 5E devs did not include turn undead as a default cleric power in some of the early playtests, and the playtesters demanded it back in as a 'canon' element of the class. Me, I've never liked turn undead as a default power (why the heck would a cleric of Poseidon or Ares automatically have the ability to scare away zombies?) and it's something I'll probably house rule.
If it helps, you could think of it as a property of the undead rather than of the cleric. Because of how they're created, there's just something about undead that makes them susceptible to concentrated efforts of focused faith.
Personally, I don't see much difference between Turning Undead and Curing Wounds. It doesn't make much sense for a Storm/Death/Trickery god to be doing much of either of them, but if they can do one then there's no reason they can't also do the other.
Turn Undead as an effect that simply scares undead and makes them run away is stupid... I know it's the original effect, and it's always been like that but come on, you want those things killed, not hidden away until you leave.