I am currently running the Crown Chemical Co. every day with 12 level 90's and I've done the same with 7 90's last year.
I've also dont this boss every year since it's was introduced.
But sadly... no mount yet
Now the Horseman's Reins drops every year for me withouth actively farming it and I even had 5 in Wotlk (Before mounts were BoA).
I've asked around in the guilds im in and on the trade, but it's hard to find anyone that has this mount. The Horseman's Reins on the other hand is something many people seem to own.
Is the Big Love Rocket indeed this rare?