Well XPMorten i dunno if you have any experience in a transport category aircraft like the MD80.
If a thrust reverser is set inop it's written in the tech log and we brief it as a part of the pre departure briefing (we do the same before landing).
It is possible that other pilots have other experiences than i have, but in the 35 years that i have been operating jets i have never had a inop reverser deploying in flight or at the ground, and we do fly around alot with a TR inop.
I think that the answer to this tragic accident lies elsewhere than an open reverse bucket.
Will await for the final report!
Inop over and out