SHB dungeons hit fairly hard. I remember being baffled when leveling AST. After 72 with a strong toolkit I'd expect it to be smooth sailing but tanks seemed to eat Star, CE, CU, ED and AspBenefic and it still wouldn't be near enough and I'd end up going all in Synastry + Benefic II spam. I saw Rampart and Sentinel/Vengeance and their gear seemed fine.
In the end I just concluded that big pulls in ShB must hit like a truck. It was actually fun and tested the toolkit, but I'd say healing any Savage fight is twice as easy as those Normal dungeons were.