LOL. It is PR BS. AJA’s “Beta” drivers ONLY allow you to use the AJA i/o as a second computer monitor feed, not as an actual broadcast out. Gives you Preview quality only. And, they want you to install the drivers on separate boot drive because they will adversely effect anything else you use your AJA card for. Matrox’s advice is, to my mind, far saner. So, don’t take it out on them.
This is apparently no easy fix, and I’m guessing it will be a long time before it is taken care of. It is becoming very apparent that broadcast monitors were never supposed to be a part of FCP X.