I am also one of the MED users out there, basically because I lack alternatives. However, I think MED's modeling abilities should indeed be further enhanced and developed - since MED is advertised as "model editor" in a package named "studio", one could expect a modeling program that has at least the basic features. And today, basic features are a little bit more than just being able to place and edit vertices etc.

In fact, I think MED _does_ have what you need, only its workflow is, well... it's crappy, let's face it
Seriously, a depth-test when selecting triangles/vertices together with a bigger (adjustable!) vertex click radius and a solid camera movement would speed up things enormously!