Most likely they'll patch up the K/Q aggro again since they did mention it was an exploit. But you can use the other strategies in noneo's thread as they can be as effective.

Trash Heap strategy has also been changed and guide has been updated to reflect it:

These grates cannot be destroyed, so they must be avoided throughout the entire fight. There is a hint of green gas that appears for about 4 seconds before the grate explodes, so be sure you're far away from them. Sometimes, more than one grate explodes as well so careful kiting and avoiding Trash Heap's melee hits are imperative. If the fight goes on long enough, Trash Heap starts glowing green and ALL the grates in the map spews out green gas and they all explode, so its best if you kill Trash Heap as soon as possible without too much delay.