Hmm... this is an interesting, delicate and confusing matter, due to the points already pointed out in this thread..
The relations between Kruger and the IMG aren't so swell, with the IMG having many ex-kruger and Daumann workers that were fed up with those companies' bad bad working conditions.. I wouldn't say we are enemies but definately unfreindly to eachother.. I always thought that the Spatial and other IMG ships were hence considered not to be used by Kruger, but I haven't been active for quite some time until recently due to my university studies - a lot has changed rules, mod and more recently, server-wise..
I personally wouldn't use the Spatial if I were a Kruger - If you ran into another IMG they proby wouldn't be very happy.. Plus, as others have said the Spatial is a bismal fighter to PvP in. Only a few people can pilot it well enough to scrape some kills, and if you come up against someone that's a good fighter pilot you'll be hopelessly outclassed. If that happens it all just comes down to luck (aka mashing the drop mines button and hope you kill them somehow with minespam).
Where does it say that Kruger can use the Spatial? I'd like to find out the reasons behind it being listed as such...
Probly as it stands and without further information to go by, a Kruger Spatial will be a very rare uccurance. It's would be hard enough to find someone wiling to sell you a Spatial, and even after that, I'd expect inRP that Kruger personnel would think IMG ships and equipment are inferior to anything they can make/procure from their own resources..
P.S. - Please don't go off of the IMG page in the Disco Wiki. It's utterly screwed up and requires a complete overhaul.. I know I've said this heaps of times now but hopefully I'll fix it up sometime soon. Perhaps I need to find one of these to help speed up the process..