Fair enough. I wouldn't have allowed it to be the end-all measurement of gear but I've already got several raid members who are using Rawr, so they would understand the limitations of the tool.
The most recent case where this got brought up was a Resto Shaman who doesn't do the 10 man ToGC, but does our 25 man ToC. He won a loot roll on Boots of Tremoring Earth from Faction Champions. They're item level 245. A Elemental Shaman
threw a small fit because the Ele had been running 10 man ToGC and was wearing the item level 245 Boots of Tortured Space and felt the Tremoring Earth boots were BiS for him and a huge upgrade for him.
We awarded the boots to the Resto anyway as he was running around in Lightning Grounded Boots, a crafted 226 item, while we felt the boost, if any, for the Ele would be minimal.
Later a couple of our raiders had been running Rawr and informed me and the guild that we did the right thing anyway and that the Ele was mistaken in wanting those boots anyway. His own 10 man Heroic had an extra gem socket and he was having mana problems
that would have been worse had he given up the 26 mp5 his current boots had.
Anyway, the thought was it might have been useful to run these kinds of lists before the raid week as another data point to use when considering whether to override a /roll on certain items.