If you want to beat them... track them... when they engage the other group... hit them from behind... it will do insane damage, because if you notice the DRK runs to the back once done its thing... and the system works like it can only move forward, you can ravage them entirely up from the other side.

But it requires alliances not to follow the obvious way and not to sandwich the other team to totally gank them and then get ganked right after, as it matches with the premade cooldowns to proceed directly onto the next alliance.

You can really ruin those premades, if you communicate with your alliance and do it well and you don't need the meta for for either to do such easy.