I think Surge shouldn't have the basic attack requirement
I don't really see how making Surge to work with chainsaws, hatchets, Ambush, Corrupt Purge or Shred would be overpowered. This perk is already limited by the range and the cooldown, it doesn't need to be specifically made weaker for certain killers.
After all, they buffed Infectious Fright and Dark Devotion to work with all the attacks and that make them much better than before, but still not too strong. I am sure that even with this buff, Surge still wouldn't become meta.