Shadowheart, Gale, and Wyll in particular seem to be set up to have a 'fall/redemption' arc. One could just as well say that they have 'strong good leanings'
A character having a redemption story attached to them is an entirely separate issue. For the purposes of our discussion here, what matters is how/where they start out. That's their default alignment, the alignment they have if you the players does nothing to engage with their so-called arc. So the default alignment for SH is clearly and obviously evil, since she's a Sharran priestess. She may end up having a redemption story, but her default is evil, and so it is eminently fair to place her in that box starting out. And for Gale and Wyll, their defaults are also clearly neutral at best and most certainly not 'good'. And my 'good' PC is not going to have a positive reaction to someone revealing that they made a pact with a devil, or that they tried to steal Mystra's power for themselves.
