If you don't care about maxing your crappy destinies for EE play, either because you like being carried through on ee for being in a non-synergistic destiny or because you only play EH, and you don't farm rusted blades, stay on your own corner, for this discussion does not concern you. It's really easy to call something not a nerf when it doesn't affect you, and when it's not you who will have to compensate by running more of it.
Sure, we still have impossible demands and death undone. If everyone moves to those, how long will it take for devs to decide to nerf those too? Then we'll be running fathom, why not nerf that too? Will it be 'not a nerf' then as well when there's no viable way to amass destiny XP on higher xp/min?