You're wrongly assuming that Adobe corrects everything the beta testers find. Can you show a screen shot? The handles in Camera Raw used to be painfully small, but they should be bigger in 9.5.
In a Windows environment, I've never found a way to do a screen capture that includes where the cursor is located. Perhaps you could test this by creating a graduated filter on a .DNG file, deselect it and then attempt to re-select the innermost point. My test results are constant in that in order to re-select the end-point spot the cursor has to be placed near the upper left hand quadrant of the circle-spot and the "hot-spot" for selection extends on almost a straight line upward and to the left at about a 45 degree angle until only a few pixels outside the circle-spot.
I was a pre-release tester for Adobe for a half dozen years from CS4 through he beginning of CC. I know how it works.
I can't seem to reproduce this. I have no trouble reselecting the handle even if it's outside the image area. Yes, it would be nice to be able to capture location with a screen capture. Good that you know how the PR works. I see a lot of post blaming the folks on it, and they try very hard to catch everything and get Adobe to fix issues.