If you want to sell as many phones as possible to businesses, you need to to target all the major carriers businesses use.
Not if that carrier insists on things that will hamper your product.
What if the hold up is that Verizon wants an exclusive for US? If catering to what Vzw wants locks you out of making your phones compatible with any other network in the US what would be the point? You'd be relying solely on Verizon to push your product.
Realistically, how does anyone suppose that would work out? Success or Failure for the Elite X3?
Certainly there must be a reason the device won't launch with capability for Vzw's network. Limiting possible distribution isn't an arbitrary decision. Vzw must be demanding something that would limit it more than launching without Verizon compatibility.