If you're referring to my video, I'll admit - it's not really a guaranteed safe-spot...but it took me about 16 tries to time it out without getting hit. Unlike bjw's Dragon Bullet timeout run...
On Easy and Normal, I can easily pull off the same tactic and time it out in one try (well, at least that's what happened to me), so it could possibly be a safe spot for those two difficulties. In my opinion, the safe spot in those difficulties, really, is where you're positioning (as long as you're somewhere in the bottom center area).