My druid/the druids and a priestess of Shar should (potentially) be immediately hostile toward one another, full stop. And they should 100% recognize each others' symbols, respond appropriately, and have banter or cutscene commentary on highly relevant areas. I think there *might* be a banter comment from Shadowheart when you first enter the Goblin Camp? Maybe? Contrast that with the extensive, confusing - BUT VERY HIGH POTENTIAL - scene with the desecrated altar to Selune behind the windmill.
We want the characters' roles and choices to mean something.
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To what symbols are you referring? Shadowheart surely knows the druids but she is actually undercover und would be quite an idiot to let the druids know her (allegedly) connection with Shar.
Generally I concur, I would like a sensible relation between the actors depending on their background, with individual room for decisions. Not all clerics or druids might be fundamentals for example. When I played as cleric, I actually avoided to take Selune as deity because I don't want to mess up too much with Shadowheart (meta knowledge, ok, bad it is) but I was a cleric of Tyr who did not take this good-bad stuff too seriously. The gods are far away, a bit dump and mostly kind of villains themselves, so your own matters matter more, don't they?