Actually, issues have only been reported by "some" people. Not by a lot. As stated, it's not an OTA. However, it is DEFINITELY possible to get back on the upgrade path. You're only off the path until the actual OTA comes down. This happened before with this phone on the ICS leaks. Anyway, in short, here is a link to how to get Jelly Bean. If you want to do it, it's on you. I can tell you right now that I've been on it since Christmas Eve and have not had 1 single issue. Does this mean you won't? Of course not, but it also doesn't mean that you will have any.
It's your choice, here's the link with step by step instructions that are fool-proof:
[Leaked-Ota][Cdma][4.1.2] Jelly Bean 98.72.8 (12/27/12) - xda-developers
There are also quite a few custom ROMs out already with this Jelly Bean as the base. If you choose to, it's on you.