Actually I think if the COD on Vita was a multiplat port (just downsized graphically) ... it would've sold more, not less. The "custom" version to Vita got was pure crap, lol.
The problem with multiplats on a Nintendo console is even most Nintendo fans who would be interested in something like COD or Watch Dogs have learned over the years that you have to buy a Sony/MS console to get third party content, so they buy those games on those platforms even if they have a Wii U.
On the Vita at least there's the novelty of portability.







