@ Riot: why do panths spear crits work with IE passive, but not with ER passive?

pretty much the title. the tooltip states that panth's q can crit and since it does work with the IE passive (increased crit dmg) shouldn't it also work with the managenerating passive of ER? (it also didnt work with the "old" warlords bloodlust mastery btw.)

there is nothign in game that impies that panth's spears wouldnt interact with ER.

if this is a bug, please fix it. if it is intended, then please change the tooltip of panth's qs that states they can crit.