Sorry, late night me brain forgot to provide the context for my comment! My concern would be occupational usage if it does produce any ozone, especially in the small business sector, which often doesn't use as much caution around chemical exposure as one might want.
It might also be a non-issue. I have half a mind to build one of these and do some testing.
I think their metaphor is referring to ease of use and the knowledge required for use. I have a few personal anecdotes as examples.
I'm an eighties kid. My first PC was a Commodore 64 and my first car was a 1966 VW Bug. Neither was reliable nor easy to use. I had to learn to utilize interfaces that were more finicky and complex than modern equivalents, and I spent a great deal of time learning how to make them work when they glitched out or were broken. The alternative was not having them at all. It was hard to get BBS advice when your PC took a dump and no one else you knew had one you could use, and then where would you get car advice? Certainly not from my dad!
A kid growing up with an Apple anything and driving a 20 year old car doesn't face the same kinds of difficulties. Many things just work more reliably and aren't as difficult to use. One can easily buy gaming systems now where we often had to build our own to get what we wanted. My buddy's 23 year old daughter had never even heard of CLI. That's all I had!
It doesn't make one generation better than the other - younger people today are skilled in ways I could have only dreamed of. We just have different opportunities for excellence.