Legit in my op. It's not exploring game mechanics at all, nor can you stay in a single spot with little risk of dying. In a real gunfight, are you going to be disappointed you survived because you weren't hardcore enough to dodge fire in the open? In a sense, just like times vengeance phase of atheon, there's no one right or wrong way to do it, and there are risks/rewards with each strategy. You can stay on the ledge but you have less visibility to the arena, and if swordbearer decides to run to one of the ogre rooms out of site, you may end up with a wipe from lost timing. Plus, you can't stay there for ogres or when crota moves to the sides. Just because the wizard mechanic exists doesn't mean you're 'meant' to face it, it just means that you can't kill the boomers and get a minute off.