The ideal linux desktop will never happen, I think we all understand that. There's no non-evil corporation that's even close to fighting with microsoft, and google, and apple, and there never will be. Since free software operating systems make it hard to be evil, it's incredibly hard to try and break compatability to force people into using your software, like apple, microsoft, and google do all the time.
I think the real reason why people are starting to use chromeos is because it doesn't require them to learn anything, and is being preinstalled in cheap computers. They don't use it because it's better, as this article would have you believe, but it just doesn't require them to think. In some ways, it might actually be better, but that's not why they use it. People have been conditioned into accepting having to install the new version of windows, and make a microsoft account, suffering through all the bugs and slowness, and buying a new computer when windows slows things down, but that's been happening for years, and until now, with chromeos being preinstalled, everybody has kept using windows, even if they would do better on a good linux OS.
The truth is that your average person is just fine with clicking large windows telling them to update, pay to use the full version, sign into their google account, run some awful antivirus, because they don't want to learn how to use anything better. If you put your average person in front a linux installation with lots of clicky buttons that works how they're used to, if anything that they want isn't already there then they won't bother to look up how to install packages on X distro, they're going to call tech support to install windows, where you download the first executable that comes up on a google search, or it's going to all be there already, like with the google and apple suite.
This is sort of why I'm opposed to people coming up with the latest clicky button applications that are supposed to make ex windows users happy because they look and work the same. Unless you have the funding to compete with google, apple, and microsoft, you're going to get nowhere. The only people who use linux or will switch to it are people who are willing to learn, and those people would probably much rather prefer using their package manager on the command line, or using the find command to look for types of files then have a gnome gui with 4 total options to toggle because it tries to emulate windows. Not totally against clicky buttons but please don't try and make linux distros closer to windows.
Many people would call this "linux elitism," but frankly, if you aren't willing to learn anything then you'd actually just do better to stick to windows, chromeos, or macos in the first place. That way you're less likely to have to learn, even if you have to deal with annoying pop ups, long updates, and slow spyware.
Side ranting, if the linux desktop means that people are using android phones and chrome os, then I would rather never see it happen, ever. It's criminal that schools across the US are requiring the use of chromebooks and google accounts for all students.