No worries, text conversations are hardly the best for getting your full meaning across. I've been in the same position enough times.
To be honest, I only differentiate because Frontier do. As you say, menu logging is effectively as bad in its intent, however Frontier make the rules so I personally accept that it's going to happen in the game and if there's not a punishment, no point in dwelling on it. With combat logging it certainly seems like there's a warning sent out so Frontier are apparently saying to players who do this that it isn't how they want us to be playing the game.
I suppose the line is always going to be that if someone does get a ban for combat logging and they had only done it because more experienced players (which may be everyone at their stage of the game) said it was OK, potentially would that be worse than just being ganked?
There also the question of why would someone buy a game which advertises adverserial gameplay (ruthless and cutthroat galaxy) where you're going to hit the quit button when adversity appears. This is a game that, for me at least, came with a lot of learning through mistakes and ship rebuys. Removing the consequence of a ship rebuy seems to me to diminish the game as a game and just turns it into a number accumulator.