I do use a MBP daily, and the software there is amazing. But seeing that their software barely works outside of their platform, it's a miracle they have any customers at all.
I don't think very many of their customers run any of their software anywhere other than on Macs and iDevices, so I expect that doesn't have much effect. Aside from the apple TV app on Roku and various TV operating systems and such. And still, none of this makes Safari not an "actual browser".