Yes, finally someone came up with something different (and valid) argument then 'RTwP sucks because it not TB, and, therefore, must suck!'.In turn based, you get consistant breaks in the time. After all actions are finished for that turn, it switches to the next guy. With real time with pause, you get breaks whenever. The only thing you really don't have to pause for is to keep attacking a target. However, if you're in a situation where there is lots of cover, and the AI is using the cover, some enemy dillhole will most likely trigger your autopause every time he ducks down and pops back up in to view for the "New Enemy Spotted" thing.
You are right - it's one of flaws in SPM. However, such situations do not happen all that often, and it's not as nearly as bad as you describe. I do remember only one situation like that, when I assaulted a gun-making factory, that had a few towers with guards (that were ducking for a reload from time to time). However, it's not nearly as bad as being killed by an enemy that comes out from the nearby door (or something like that) when you are out of AP in Ja... cause it's IC, so to speak. (And no interrupt will save your sorry ass. And, like it’s noted already, interrupts are hacks that deal with hackish nature of TB itself.). And 'constant pauses' issue is purely interface issue, and bitching about it - to be like those Diablo lovers that hate to be distracted from the very process of killing. When you want something else then pure button-smashing action, you have to sacrifice something. If you want it to be ultimately realistic too, you have to sacrifice even more.
You may say that it feels weird, behave strange and generally different from TB you learned to love and understand. Just don’t say it’s dumbed-down. It’s hypocrisy, or outright lie, even.