Tried it on 3 different moto Gs and I can say that it doesn't work, actually 2 of the devices had shorter than usual battery life.
I guess it's the placebo effect that plays a huge role in this, because I don't see any real tweak being done with this.
Also please note that screen-on time has a very little with how much your device lasts between charge cycles.
At least benefiting for most XT1033. If benefits follow it else ignore it. Morever its not development, its a trick..if any minor mistake following it then it may not work as intended.
About Screen-on : I don't believe in outstanding backup holding in pocket and claiming 2-3 days of overall graph. I believe to put my phone in usage-browsing,downloading,streaming,chatting so on ... and all this goes with Screen-on all the time. So i prioritised Screen-on and placed a Screenshot of it at OP.
Before this method i would struggle to get 5-5:30hrs of Screen-on usage and used to charge 2-3 times in a day. Now i charge only once in a day and also get to use in foreground for long hrs. So myself definitely happy with this