So why would I get it if it does not work with the Boom system?
That's a great question!
Personally, I'm not sold on wireless Bluetooth. I still use the wired HD headset in my helmet for CB, intercom, phone, and music. A wireless Bluetooth will be reliant on batteries, and my riding days frequently go 12-16 hours, and occasionally more. I just don't want to worry about when my headset will die...
That said, my friend has a '14 FLHXS, and he still has no wired option available for passenger intercom. When he bought, he had the rider headset and CB added. We both assumed that HD would soon release some sort of headset connection option like they had for the earlier bikes. (I had it on my '09 FLHX). So we can communicate easily between bikes, but his passenger is kinda left hangin'. So the Bluetooth headset might be the only real option for folks who have '14-later bikes that are not wired from the factory with intercom.