Look, I understand that as the DM, this is in my hands. If you're willing to tell me more established FR canon, so that I can be as consistent as *I* want to be, for my oddball DM style, then please help. If you're trying to tell me not to worry about it, then please stop.
Nope, not trying to tell you not to worry about it at all... I'm actually trying to come at it from a point of view of interpolating what is probably happening based on what little canon I think there is. Long story short... I don't think there is any canon about Phlan's citizen's reaction to tieflings on the whole, because that's a very wide brush. Do specific NPCs have any canon feelings towards tieflings? No idea. Right now... the canon of Phlan is all tied up in the 14 Expeditions modules written for the Tyranny of Dragons storyline, and as I only have a few of them, I can't say with any certainty what any specific NPCs reactions are.
As a result... I've only been trying to make logical guesses based upon my limited knowledge of Phlan at this point in time (from the few modules I do own). If that's not helpful for your needs... feel free to ignore them.
