I get the feeling those that like the arena idea over a new raid, suck in raids. They're the ones who can't pay attention. You'll find them off fighting thralls at a crota cp and causing an oversoul. They also don't shoot oracles when teleported. They refuse to listen to strategy and just assume if they shoot enough things they'll win. An arena works better for this player. "Oh shit! I was off on my own fighting things that don't matter, and I died. Good thing I don't have a job that I need to accomplish, and there are no oversouls that can cause a wipe in the arena."