Support for .cshtml or any kind of new tech page like Blazor, Razor or whatever. Finally these are really html pages but wih some twists in the syntax which would not be very hard to ignore or at lease simulate them and let us design our page for Bootstrap integration which we do already manually. That would place BSS at the top of the chain ;)
Who doesn't use ASP.NET MVC, Core, Blazor and so on in Visual Studio these days ?
Right now we have to design Bootstrap, HTML and CSS just for layout in BSS and then transport all this in our ASP.NET MVC projet and modify accordinly Then maintenance in BSS afterward isn't possible and we are left with the old school which is modify our page manually. This brings us to why we're using BSS in these circumstances ?