That might actually be the majority of active Android devices if you look at the marketshare statistics.
I think it's actually somewhat embarrassing that the tech industry hasn't been able to provide a low cost, reasonably secure smartphone platform that can be used for more than a year or two. The only people who can remain secure are the ones who can afford either new Android phones or slightly less new iPhones.
Security is like a luxury item, and the worst part is that most people don't even realize it.
Android: not fixing fragmentation after all this time. Essentially, people with less money get less security.
Apple: not making true budget phones with the same lengthy support windows, though this might change as they emphasize services.
Microsoft: leaving the smartphone market entirely. I used to use Windows Phone and it was clearly better than Android. Android was slow and getting updates was a pipe dream. Windows Phone was like a less locked-down iPhone, and around Windows Phone 8.1 the app marketplace wasn’t half bad.
Had Microsoft put out quality flagship phones consistently on a yearly basis on all four major US carriers, they’d still be making smartphones. But people who wanted windows phones were stuck waiting for Microsoft to reorganize Nokia while they mostly crapped out budget phones and had one or two outdated flagship exclusive to a particular carrier.
Windows Phone 10 arrived too late, it wasn’t as good of an update as 8.1, and it arrived after a long drought of phones.
The "flaw" is that apps you explicitly gave permission to use the camera, can use it! All they've done in P is notice that they can tighten the permission even further so the app has to be in the foreground to use that permission.
The lack of this wasn't a vulnerability though. Mobile operating systems have been implementing finer grained permissions and security through their entire lifespans. For sure that trend will continue. If we spin every improvement to privacy controls as "fixing a vulnerability" it's just a form of crying wolf that will lead people to ignore security updates even more than they already do.