VBar is a great FBL, no doubt. It set the standard for a number of years, but I don't think that is necessarily the case anymore. And besides performance, value has become a key selling point. Many see higher bang for the buck going with 7200bx, Ikon, 3GX and even cheaper units. I also think that you may need to buy either a programmer card/device or a USB hookup for it, on top of the vbar price. They also have two versions of the software, one that is free and for full feature set programming you need to shell out more.
I'm not sure they solve a value proposition problem by introducing an even more expensive programming device, which happens to also be a Tx. Anyone who's already flying is going to have Tx/Rx equipment. If they have vbar they already have the programming side covered. I don't think this is too compelling for them beyond the cool factor.
I'm not sure if another company will try it themselves. Spektrum could, but they only have the 7200BX for it to work with. Unless they go a bit of the route I was speaking of and make it an open protocol so other FBL makers could integrate support for it. Futaba would have to do some kind of open protocol so FBL makers would integrate it, since they don't really have their own FBL system to market it on.