IMO the black outlines make the sprites look out of place. As a matter of fact, it's my main beef with Edge. It's black outlines are so thick, it makes it look like someone tried to make a "Jet Set Doom" mod. And to make it worse, there's no way you can turn it off (unless you disable filtering all together).
However, as the saying goes, "different strokes for different folks", so if some people like it that way, and it's easy for Graf to put in (as an option, of course

), then I don't see why not.
I know the "just blur" picture you have there should be easy to add, as it was an option in ZDoomGL.