I'll be the Devil's advocate for a moment (no offense intended, just a common phrase).
We know about battery safety because we're experienced. We know about Ohm's law because we're experienced. We know how to vape simply and easily because we're experienced. That being said, someone who is not experienced doesn't necessarily know how precarious vaping can be, or what options are the easiest/ safest to use -- and because of that, they may not even know that they should be reading up on it before they start vaping.
Hind sight is 20/20, but we were all new to vaping at one point. Even being the research nerd that I am, I too was a little taken back by how much I needed to learn once I stepped into the world of mod boxes. Now, I know that if I want simplicity/safety, I should go with a built-in battery, built-in tank, replaceable bubble pack coils, and get a regulated mod. But I didn't even know to look for those things until after I became more experienced.
The truth is that each facet of vaping, building coils, wicking, battery safety/features, ejuice, mods, atomizers --each one is a topic you could write a novel about. I don't think those new to vaping understand that when they wander into a vape shop for the first time or are browsing stuff online for the first time. It's not that hard for me to understand how someone might accidentally get the wrong combination of equipment and either a) become frustrated by how complicated using their gear is, or b) accidentally hurt themselves without realizing that vaping can be dangerous.
It's not that these people are all dumb, though some might very well be, they just don't know what they don't know.
Just my 2 cents.