I guess the difference in colors is not as strong as in other artificial light sources. So it wouldn't be entirely blue, just "blueish than it seems". When measuring how true are colors under a certain light, a common measure is the CRI or color rendering index. The sun is taken as a 100CRI or perfect score reference. So maybe the article is a bit misleading

Baldur's Gate 1 and 2 enhanced editions. Several hundred hours of quality RPG. Bought them several times already