Hm!
I beg to differ. Since we already know that the majority of players do not engage in PvP we are already in a position that combat logging can only be a problem for the minority of players even if every single one of them has an issue with it. Now we also know that a lot of players in PG or Open by their own admission rarely see another player or do not engage in combat if they do, so the combat logging problem must be less than the minority of players that PvP.
So it's definitely a minority problem.
Of course, the perception of the problem is another matter entirely. I really does seem to stir certain people up.
Perhaps the observation that the community in general does not see it as a problem is indicative that it really is a small problem.
There again, maybe not.
Without wishing to turn this into a combat-logging thread, which it isn't, you're completely missing the point about it. We can argue all day about the specifics of how many players it directly affects in-game but what it does is create an impression of a developer who is at best inconsistent as far as punishing cheating goes and at worst is negligent.
If this was 1984 and we were discussing a single player game, it may not be important. In 2018 discussing an MMO, believe me it is important, at least if the developer wants to be taken seriously in that market.