Yeah, quite a blanketing statement... I don't really see the co-relation between the decision for X-Pro1 versus a US$1,500 Fx other than the price itself.
Both are different beasts and serve very different purposes... what you can get in X-Pro1 might not even be delivered in an Fx body. And of course, vice versa.
Regarding bokeh? That's odd... I don't see why D90 + 50/1.4G or 80/1.4G can't deliver the bokeh you seek versus the X-Pro1 + 50/1.4 lens. (Speaking strictly Bokeh and nothing else). Both are crop bodies afterall...
Peeps who are into Nikon DSLRs depend more on RAW files to maximize their imagery rather than to solely relying on jpegs (which seems harder to tweak when certain settings do go wrong or not good enough).
If you prefer nice straight out-of-the-box Jpeg renditions then X-pro1 maybe a better choice instead, if fast-focusing isn't what you need. An Fx will certainly deliver thinner DOF than a crop sensor, but you may be required to depend on RAW files for a bit of tweaking.