Yeah, agreed. It's just the only place I know of that sells them. You can also buy the unique plugs and make your own. Cable making is actually fairly fun if you are reasonably handy. However, no NOT get the cable from Audeze and try to re-terminate yourself. I cut them open to realize that there are 4 wires per side and I have no good way to sort them out.
Your best bet is to get the cable from Audeze with the 2.5 termination and then get a 2.5 Bal to 4 pin xlr adapter from VE. I'm doing that for myself.
Another option may be to have someone like Peterek mod the stock cable. He may or may not be able to do it. It was outside my ability. If you're interested I'll mail you the Audeze Pono balanced cable I destroyed if you want to mess with that.