That is definitely a reason to switch back if it is important to you and easier for you to use everyday.
Now after I say that is that the only thing that makes you want to take it back after leaving android?
As someone who has the S6 edge and had had two replacements so far, I urge you to at least look into a different Android phone...
I have been a diehard Android user since the Galaxy S2. (I've owned iPhone 4 & 4S also) and I cannot wait until November when I can Jump to the iPhone 6s!
This edge has been nothing but trouble for me. The first one completely bricked (no, I didn't root it) and I had to have Samsung replace it. The second one had the annoying purple spot camera defect and I had to have Samsung replace it. This third one is currently giving me hell with lag, stutters, freezing and seems like it's on its way to bribing again.... I'm getting very frustrated.
Unfortunately, my friend has the regular S6 and she has the exact same issue, minus the camera spots. She's been through 2 replacements as well.
Personally, the edge screen just seems like a gimmick to me, I've had the phone since release and I've tried finding a way to make it useful but it just isn't.
It's obviously your choice, but please, at least consider a different Android phone.