My initial reading would be that they were calling you on fantasy roleplay, and giving you the option of joining the community norms.
Norms...in this community?
...
Chances are, if I ask 10 other people what the "community norm" is, I'll get at least 12 opinions :9.
Agreed. It's been my experience that every player has a point where 'if it happens in game, it happens' breaks down: maybe it's rescuing the damn damsel for the 1,000th time, maybe it's the fact that the chargen treats the different races as different
species who never, ever interbreed, maybe it's the nonsensical NPC corps, or the eternally suicidal NPC belt rats, or the magically reappearing veldspar in every belt, or DT, or aggression mechanics, or alts, or the comparative size of ship models, or ...
And it's also been my experience that many players consider their own exceptions to the 'if it happens in game, it happens' rule to be basic, obvious common sense and community norms, and everybody else's to be immersion-breaking.
EVE has often contradictory PF, nonsensical game-mechanics, illogical behaviour by NPCs both small (belt rats) and large (Sansha incursions, anyone?). Every RPer integrates them as best they can and as much as they can, and with some points of difference from everyone else.
The way you treat those differences is entirely up to you: curbstomp the other player with game mechanics, play along, change the subject, ignore them. But it is
your choice, not an unbreakable law of RP.