nah I can confirm both countering and retaliating do provide enmity.
Been in many situations where I counterstance tanking several mobs and a cureIV has pulled some of the mobs off me, and some of them stuck to me. Would depend on how many counters proc on each individual mob, and how much dmg/hits landed on me, for which mobs would turn on the healer and which would stay continuing to attack me.

Question is, is that just enmity being generated from the dmg done, or does a counter/retaliation have more/less enmity?