So, in the end Withers almost plainly confessed that, yes, he actually a Jergal himself. Well, i know he does that for Dark Urge at least.
Except, he still didn't. Ppl who isn't deep into Forgotten Realms lore would miss that, not understanding all his cryptic speech. I think that's a miss. There should be at first religion check, giving players plain explanation they are facing a real god in flesh. And even if player fail check - there still should be opportunity to get plain answer from him.
And second, would be nice if game would explain, how comes that one of eldest entity in D&D, and once deity of immense power, ended up lying in some forgotten tomb o_O
As well as why god-on-retire have so much interest in another scheem of Dead Three.