Yeah, it's worth considering. However, it's not very clear at the moment how official this content is, in regards to it's canonicity. I did some minor googling after the last time it was brought up here and put in question, and here's what the deal seems to be: It's published by WotC, sure, but not made by them (though apparently it was written by one of the original creators of the BG games?) which on it's own wouldn't be enough to raise doubts since they outsource all the time, but it's front lacks the typical labels associated with official content that normally marks all official material. It was also released as part of a charity stunt, as I understand it, which means it could be of less weight to them rather than a deliberate creation.
I'll guess we'll find our eventually