MythicMobEggEvent

Since the MythicMobEggEvent triggers when a PLAYER uses the Mythic Egg item (that's what it says on the wiki), why this event doesn't provide a way to identify the player who used it? I want to check if the player has spawning permissions on the specific island, but I don't know how to determine which player used the egg.

Could you add the player to this event, just like in MythicMobInteractEvent? I can't even use PlayerInteractEvent because you're ignoring the fact that it gets cancelled (my plugin detects the use of the egg, cancels the PlayerInteractEvent, and informs the player that they can't do that, but you spawn the mob anyway).