I guess I don't really see the appeal of the mini mojos. A recurve might make sense for certain applications on a big 9"+ blade, but I don't see it as practical on such a short blade.
I find I like a recurved blade as long as it isn't too extreme. The recurve makes the small blade a slightly better chopper and a slightly better slicer. The negative to the recurve is that its a little harder to sharpen, but not terribly so in my experience.
In the Mini Mojo its probably not a feature that makes a huge difference one way or another. IMO, it does add some visual appeal to the blade.
The bigger question is probably whether you need an almost 7" blade in the first place.