Animation cancelling with Spell Repeats + Multistrike

If a skill is supported by Spell Echo, Greater Spell Echo or Unleash then the player cannot interrupt the skill until all echoes have been completed.
If the skill can be supported by Multistrike (Minions) then the Skill now gains the ability to animation cancel after any individual cast.

Strictly, the animation cancel should not be allowed as the cast is not being effected by Multistrike, even though this is much better to play with.