FTA: "So the issue isn't so much that there is no acknowledgment that there is a problem; rather, the vendors have been pointing fingers about whose problem it is for over a year, without progress made on the actual resolution."
Finger pointing or not, it's hard to believe that it could take that long to address the issue. Even if they can't get their shit together to fix the fundamental problem, couldn't they at least kludge in a piece of gateway software that would intercept the USB port data and raise the difficulty level of gaining access and exiting kiosk mode? That, plus actual lock-and-key protection of the port, (and maybe a retrofit of a custom connector that would make it even more difficult to make the physical connection), would buy them a lot of time to get through the exercise of deciding who's going to fix the REAL problem.
Speaking of fixing the problem - I know the answer to this, but I have to ask anyway: What happened to the practice of just fixing it because you can, and because it makes you look good, without regard to whose fault the problem was in the first place? They could have had this taken care of inside two weeks - maybe a month at the outside - if they weren't playing juvenile schoolyard politics.