DPS typically isn't a flat line, especially for a spec like arcane. When you decide to end the test (in relation to how it lines up with cooldowns) will have an impact on the final DPS number.
That only covers 5 items. Whether the rest of your slots consist of the pre-made 463 blues, the PvP vendor gear, or 2/2 upgraded ilvl 517 heroic pieces copied over from live will have a big impact how impressive those numbers are.
You made no mention of spec comparisons in the post I responded to, so this response seems to be somewhat random.
Again, your post was about dummy DPS, not raids with normalized ilvl. So, yeah, gear is still a factor in terms of providing context.