Earlier quoted context omitted.
You seem to completely miss the point of what they did. It is not a simple Bash recompilation for Windows. It is a way to run Linux (Ubuntu) binaries on Windows.
Well I, for one, think he has a point. Part of what makes the shell so useful on Linux is, say, highlight-to-select. When the CMD.EXE doesn't understand line breaks in copied text, it's substantially crippled. You need a proper terminal to take advantage of a proper shell. They go hand-in-hand.
In pervious versions you could always use another console like Console2, but now it's built in (although the third party options still have more features than the new built in one).