Dear Devs, will you be fixing exploits, such as

I don’t know this Mione person, so the question I have is whether or not they are able to reach and kill the last boss of a 5 man dungeon in less than 12 minutes, and 5 times per hour?

The platform in the King’s room is perfect for kiting him. There’s nothing wrong with his pathing, it appears to be just as any other enemy’s pathing. The distance from one side of the platform to the other prevents Cho’Rush from casting a heal or spell because his target(s) keeps moving too far. You could solve the problem by making the King run faster, and making Cho’rush’s spells a fairly large range.