"We just need more counter PC."
Hmm probably You are right but I don't want to have situation when I must use protect FeralBond or SoulCatcher because all Players can destroy it so easily. So permaments have no sense... Most players will decide to put Heal instead FeralBond, or more Towers instead SC etc.
What is more - in my opinion when I have Sanctuary and put it in game it should be ALWAYS unreachable for BH, Discord etc. It is counter and it should protect me always like PA protect permaments, like Deflagration destroy forever permaments... Sanctuary effect should be also always and forever like other counters. Now mono gravity can laugh at Sanctuary... Easy to kill permament, BH in hand and rage quit opponent
Huge nerf for Light, especially when Light hasn't got CC. No no no. It is bad idea, very bad. PC for Gravity? Ok, no problem. But not for all and not with BH.