I can't see your link because this work PC has whatever it is you used there blocked. But I can say a member of our fleet broke the 1 mill mark yesterday. He posted the screenshot on our fleet forums in a thread we have about our best damage.
In all honesty tho, total damage is pretty neat to keep track of, it isn't really a true reflection of the player. I've been in some of the Salvage Instances where just one que took over an hour long, and most of the damage totals were crazy high.
Now if all instances were on some sort of timer, and the conditions were all the same, and then you get some outrageous damage numbers, then thats truly grats worthy.