Wouldn't you rather Jolla spend their precious development time working on the actual operating system instead of spending loads of time on one app? Their job is to provide a stable and flexible platform for other developers to build apps on, not to single-handedly do everything themselves.

The Sailfish browser is "good enough" for most things, just like the AOSP browser is "good enough" for most things but not particularly awe inspiring. On every OS I can think of, one of the first things most people do is install a 3rd party browser to replace the built-in one. Like other platforms, the browser category has received a lot of 3rd party developer attention and we have WebPirate and WebCat to replace the default browser.

There's a double standard here too: Google development of the AOSP browser is minimal compared to Chrome because they want people to use Chrome instead, and improving the AOSP browser benefits all the other companies shipping custom Android distributions without Play services. I don't know why we expect Jolla to do so much work on their open browser when other companies don't.