> The whole point of Core is that MS have rewritten .Net and ASP to learn the lessons of more modern languages. ASP.NET 4.6 is standing on 19 years of cruft which is why it has so many weird and complicated parts.

MS hasn't rewritten .NET, most code is simply ported from .NET full. ASP.NET has been rewritten, but only a part of it (the rest is simply not implemented (yet)). '19' years of cruft? .NET 1.0 was released in 2002, not sure where your 19 years come from. Besides, it's better to use a framework that actually works and does whatever you throw at it, than some hip new thing that can only do a few tricks today and perhaps learns a few more tomorrow. You know, clients and all, they want to use the stuff you write and not have to stare at things that break down / crash.