Hold on, let me summarize this.
Two turbos blown in 13k
First blown on APR tune
Second blown on JB4 tune
First turbo was NOT replaced by VW dealer, but the tuner besides VW dealer, and according to the other thread, the tuner wanted to flash back to stock in case turbo MIGHT blow again? uhh ok... that's a red flag right there
Second turbo blows on JB4 tune... well at this point who knows if the tune helped with the turbo blowing, but by the sounds of this thread, and the other thread, someone didn't do a proper job replacing the first turbo. Whether it was cleaning everything properly, or if it was a used turbo, or... you get the point
You might've been unlucky the first time around, but I'm sorry to say, I don't think you're unlucky on this second turbo, I think you might've got screwed by the tuning shop when they replaced the first turbo