What about using my brain? pure logic mmm? LOL You don't think each time the screen is on you are saving battery, do you?
ios 10 is a mess currently for many users regarding battery life, 1% dropping each 2 minutes pretty much in average doing anything, glad that you are as good as always.
Then I'll use my brain and pure logic too. Battery drain issue is one of the most common problems with new software releases. Historically all major iOS X.0 releases had people flooding this forum saying it's draining their battery.
So the raise to wake cannot be pointed to as the culprit for this issue.
In any case, when your phone is on the table and you want to check your notifications. What do you do? You give the power/home button a click to wake the screen. When you want to unlock the phone what do you do? You give the home/power button a click to wake the screen to unlock it. Raise to wake simply took away the clicking part of the equation. Simplifying things for you while consuming as good as negligible additional battery power.
Whatever that you do to your phone when it's screen is off is to wake it up, raise to wake makes it easier, it doesn't make your phone wake up the screen more. And if you don't like it or thinks it drains battery, you can always turn it off. So your point is moot.