BV/BB got clonked, but I think VBV is...slightly better? 2 uses is a big deal if you have a -40% reduced Vaal soul cost, because it means you can store another charge.
Edit:
Vaal Skill Gems can now only be obtained from a set of specific methods such as Vaal Side Areas, Divination Cards (that specifically grant Vaal Skill Gems) and the Lapidary Lens in the Temple of Atzoatl.
No more vaaling for vaal gems?????
You'll still be able to get Vaal Gems from corrupting gems. We've added an update to the bottom of the post.