Currently those Cards only drop from the easy version of the Endboss, this is kinda unsatisfying.
Also there isnt possibly any reason anymore to do easy mode and there is also no groups that would do easy mode just for the sake of getting cards since this leads into less loot for them.
I would expect the hard version to give better loot than easy mode and therefore those cards should be included to HM boss loot.
Would be very happy if this could be considered
Greetings and kind regards
Allyria