[csydas]

Honestly I think the numbers on this would be poor. OS X users use Safari, and rightfully so because the performance tends to be very good compared to other browsers on Apple hardware. At best they could hope for bundled installs with Office 365 to bloat their numbers, but I'm just not sure it's worth the effort.

The rest I'm not really sure that there is much benefit to it save the UI lag fix. The oft-tossed about technical debt is incredibly real with Microsoft's browsers, and I believe a lot of the debt that IE had was inherited by Edge to ensure a transition for Microsoft's clientele relying on the IE support for their sites.

Unless Microsoft wants to branch into having a "business browser" and a "consumer browser", they can't give users a clean and non-burdened version of a Microsoft Internet Browser. I really doubt they're going to want to deal with the headache of splitting the focus to two versions. They can make all the changes they want public facing, but as long as they have a sacrosanct part of the browser that can't be altered or removed, they're destined to be an afterthought if a thought at all.