Yeah that is probably the reason + they want us to be able to easily kill first few HC bosses depending on size of raid.
By the way, HC shannox was easier than normal shannox :P and hc jin just imo was way harder than lei shen normal and most of the HC bosses in ToT actually, simply hate the Ionization... Imagining the fight lasting long enough without the faceroll of pools and HP pool and it would be a nightmare. (Speaking as Warrior, yeah I suck at it but still some movement increase would be nice to avoid it better...)
Not sure why people find spoils so hard. I'd put it easier than Shamans at least.
Brewmaster Icy-Veins Guide Writer