40% buff to frost and 50% to blood inc soon. Will Unholy still be BiS?
Chaos bane is still bis for the vast majority, though on pure single target the DPS loss from the blood set could be worth to gain the healing.
Blood isn’t far behind unholy at all for most though anymore, but definitely don’t feel like you made a mistake upgrading your unholy shards.
Check your class discord and you can probably find the information that you’re looking for. Frost set for example was already good for outlaw and now with the buff it’s going to put us at the top of ST damage in raid so things could have changed for you too.