We’re gonna be finding this stuff for years, aren’t we?
I’ll be careful about anything that’s actually a spoiler, though, because no one likes things like how BioWare spoiled who the Big Bad is in Inquisition with a codex in DLC you get early game. But this; a random and rare character interaction, is not one, and if someone is really this stickler about what they think constitutes one, they’ve honestly got to completely avoid things like communities about the game.