While, me, you and most other on this forum are here because we go above and beyond with our devices, face it, most users probably open the box and press the power button.
So, OP's test is really in reference to a good majority of users (whether we're talking electronics, appliances, cars...) who simply press power and don't go a single step past that if they don't have to.
And then there are the people in-between, which I would imagine are about as much of a minority as the extremely tech-savvy on this forum.
My husband, for example, is a power on and go kind of guy... Could not care at all other than it works when it needs to. Then there's me (I'm the OP), and I'm somewhere in the middle. I do basic measurements of performance (like the benchmark test, for example), watch my memory usage, turn off/disable apps that I'm not using, changed my launcher, change settings & install apps to try and speed this thing up, and read the forums to try to learn a few things because I think it's interesting.
But that's just it. I really find it
interesting. My husband does not. He finds race motors interesting and can perform every subtle nuance to make a dragster's alcohol engine perform. He also has a mechanical engineering degree; he's a pretty smart guy...

Not all people find their phones interesting enough to invest the time and energy that I do, or to an even greater extent, that some here do.
That does not necessarily place them in the category of,
"a good majority of users (whether we're talking electronics, appliances, cars...) who simply press power and don't go a single step past that if they don't have to."
I invest a lot of time and energy to find just the right app to help me with the things that I do to try and run our business, though. I'm not going to ever root my phone either, but still I feel like anyone that participates in these forums should probably be given the benefit of the doubt that they just might be more than
"people who just hit the power button"...
I'm just saying that it's not just 2 groups - Rocket Scientists and Idiots... there are plenty of us in-between...

Thanks for your post, though. I appreciate your time to answer, and yes, I do agree with you that it's probably a good, generic test that will suffice for a lot of people.
...Especially considering all the posts I read that say something like, "It's faster!" "It's slower." "The battery life is better!" "The battery life is worse!" "This app destroyed my phone!" (thousands of others are running it with no issue, or you've side-loaded an app that no one has ever heard of and you somehow blame the Android OS...)
It's to all of the posts such as these that I say, "Based on what? Your subjective opinion and nothing else?" At least I
have something to base my statement on. That's more than a lot of posts I read here...
