Yes, it does seem strange that almost everyone who has a problem with the board is an issue with the 5v regulator.
Perhaps a design flaw. I shall e-mail someone from FIRST teams, to take a look at this page.
...as for options... I say try and fix it. Mostly because It could be cheaper than shipping it off to FIRST to get fixed. and also because I have no idea where you can get a new one at this time. Maybe try e-mailing
IFIROBOTICS.com. Besides, you'll probably have access to order a new one from ifirobotics later.
We used something like a L809h. Maybe not a perfect match, but it fixed the board, so I'm not complaining. So, you should probably try and get an L805, otherwise improvise.
Usually I would not recommend trying to fix electronics from FIRST (ie. camera board), but in this case... I have no idea if there any kind of warranty that could be void. I would assume there is no warranty. That's the problem with releasing cool electronics as a game hint. You virtually have no knowledge about the device.