You have read the second Paragraph of my post, where I stated that it's also doable in outdated, unaugmanted gear, right?
And for Casuals not augmenting, well I've never done a raid and ony a couple HM Flashpoints pre 4.0. I use purple Augments in my gear because I have the Crew Skill to do so and reverse engineering to get them is a breeze since 4.0.