The race was already over by the time webOS showed up. Even Microsoft, with a superior product and many billions spent pushing it, couldn't overcome the network effects of iOS and Android. No one else had a chance.
Both Microsoft phones and WebOS have surviving communities today, and would have thriving communities if new devices were available.
Sadly, it takes more than two consecutive quarters to establish a platform.
This metric has very little to do with quality.
Pretty good for something that supposedly failed 12 years ago.