Well, I wouldn't go quite that harsh... I mean, there is a lot of buzz around the performance differences of the two chipsets.... The problem has a lot of elements though:
1) Those battery tests you see on websites? I think they are utter rubbish. They might be better than nothing, but that's about it. I have yet to own a device whose performance, good OR bad, falls in line with the expectations of those tests. The tests only show how that phone performs on that test and that test alone. So if someone bought a phone with the expectation of running that exact battery test all day long, and nothing else. well, then they'd know what they are going to get. Everyone else? Don't put much stock in them.
2) And even if someone was to have owned both phones, it is extremely hard to duplicate the usage between the two enough to draw conclusions. And even then, their conclusions sort of dovetail with problem #1 above... they really only apply to their own particular usage. The software that powers these things is extremely dynamic when it comes to power usage.... so dynamic that it's near impossible to run a single test on a single phone. You really have to look at an aggregate of a bunch of people's usage to see trends.
I know a couple of people who were mirror images of each other... one owned a Nexus 6P and unloaded it for a Note 5, and other went in the opposite direction. Why? Both said their original phones had poor battery life... and both are just as pleased with their NEW phone, praising said battery. The person touching the screen is substantially more important than the lump of lithium ion battery behind it.