never happened to my E-Revo... anyway those TRA5319 and TRA5319X are for progressive-3 rocker arms TRA5359 which it seems you are not running (they are longer) so not sure if it's a good upgrade alone just replace the rod end for a new one and problem solved, the 5319 most likely have the exact same rod ends as the 5318 if you keep stripping the threads for some strange reason than get the RPM rod ends
Seems like getting one with metal rod ends and then epoxy them together, so they physically cannot separate should work. Odd nobody has come up with this and made a video.
