Ehm, I think you are right, sorry for my sarcasm.
It's just that this situation (2R on 6 engine planes) happened to me other times and I have always supposed there were special red engine damages around. But it seems they were not in the original rules.
Is it a bug or the damage chits have been altered by pourpose by the skymasters?

It could be the double damage chit: do you remember there's one in which BOTH fuselage and engine are hit? They've changed it, but they never revealed to what. Maybe we've found out