I agree that the sudden love in from Lolths son especially is WTF I mean Lolth has killed most of them of the Pantheon at some point or majorly wrecked their plans. Or both usually.
Lolth did nearly nothing, actually, the rest of the pantheon went against each other. In any case, the point is not that, the point is that at least half of the drow gods have goals, personalities and motivations that are simply not compatible with not being at war with Lolth. That's why they drastically retconned Vhaeraun's persona and faith. As I said, currently only Malyk and Eilistraee actively oppose Lolth (and that's why their worship is forbidden in Lolthite cities in MToF, whereas Vhaeraun's is perfectly a-ok. Smh)