This isn't a dig at Linux it's simply that we still have lazy content creators using things such as Silverlight to provide content. These applications "just work" on Windows, and when they are at all possible on Linux, they tend to require a lot of manual effort and simply aren't as good as the Windows solutions (Google Drive, Spotify, VPN applications etc.).
I also use my personal laptop for dev, and as I'm an OSS-stack developer, I use Linux. Having the ability to run Linux natively on Windows is superb, and is genuinely usable for work purposes for the most part.
The article doesn't capture a few other bugbears with WSL. The file system is slooooooow (really slow), quite a few applications just flat-out don't work, and others are buggy as hell (psql e.g.). Would I use it in a serious work capacity daily? No - but I'm certainly appreciative that I can use it and it works pretty well 95% of the time.