[Brightcolours]

A 40mm is arguably a more versatile FOV than 50mm as a walk-around lens.
However, if 50mm equiv is really required then there is the Oly 25mm f1.8. It provides better FOV control (f3.6 FF equiv) while the total package size remains in the same ballpark.
 
Fuji CFA pattern is not an issue anymore, even with LR.
If the photos (very nice ones) shown are an indication, AF is definitely not a limiting factor. Even something like a Pany GF2 would be sufficient.

MFT has that "undesirable" 3:4 old TV aspect ratio.
The Fuji CFA pattern has been an real issue for a long time, and this V1 was not bought yesterday. And it still can be an issue, depending on software choice.
And AF wise, any camera would do for these images, also my EOS M. But it was about why one would have chosen the V1, and it does not have to be linked to the images studor13 shared.

If the lens gives enough shallow DOF, no reason to look at the Oly 25mm f1.8. If it isn't, maybe the Oly won't do either and one would have to look at Sony E mount with speed booster, or FF camera, or medium format. But yeah, if this 18.5mm f1.8 gives what someone needs, why 2nd guess the choice?