There is a link to the TSB here: Project-JK.com - Jeep JK Wrangler Resource » TSB - Squeal-Like Sound Due To Incorrect Pre-Load On Clutch Throw-Out Bearing
do you have the 6 speed nsg370 or the 5 speed AX-15 (I believe)?
The NSG370 is the same transmission used in the JK and it id known to have some internal issues, mainly a failing reverse gear syncro. The problem is it may be design that didn't take into account this driving habit but ultimately what I'm trying to say is it is a bad habit of the driver that causes the damage not exactly a design flaw. If you attempt to put the transmission in reverse before you are STOPPED you will munch up the reverse syncro, leading to popping out of reverse and difficulty engaging reverse.
Before doing anything, I would go in to a reputable shop that has great reviews, that works on jeeps and wranglers and pay them for their diagnosis. Cars are not cheap and finding the right shop that has qualified staff is also not easy and even they have bad days.