You guys are mixing up a lot of things.
First I think this thread is about TOP single target DPS, Patchwerk style without cleave and without cheeseing, otherwise it has no purpose. According to Simcraft it is about 530K which is a bit wrong since with that kind of single target DPS, boss die a lot quicker than the sim settings so more like 600/650k (with perfect bis).
Second, you can't compare the end of MoP with the end of other expansions because they completely changed the way they nerf the content. Now you get increased ilvl therefore increased DPS but it is only temporary. If they decided to go with the old -X% damage/health on bosses instead of the ilvl boost, the top gear would be ~564 (you have to substract the 4 upgrades in SoO and the 2 upgrades in ToT) so almost 2 tiers lower.
On top of that you have to consider that everyone has 2 legendaries so if you want to make a fair comparison you'd have to compare against the DPS people pulled out with legendaries in previous xpac.
It feels like the progression of DPS in MoP was through the roof, but if you take everything into consideration, it not THAT bad, probably more than before but nowhere the 10x cata numbers people claim it is.