So, I read them. A bunch of threads consisting of other classes parsing is supposed to convince me? With no RK parses at all? There's some good old anecdotal evidence from people talking about other people's RKs in the burg thread, but I hardly see how that constitutes particularly compelling evidence.

Watch the vid in the last thread and look how many RKs are there. Buffs favor melee classes and stacking burglars/champs/captains/minstrels is optimal. We can put out decent numbers on 3 targets while in berserk fire mode (soon to be fixed™) which is handy far less often than single target dps.
At the moment, yes, the minstrel buff favors melee classes. Therefore in a group that is strictly designed to do the fastest DPS burn for kicks then yes, you'll be taking burglars/champs/captains/minstrels. Stacking burgs for ridiculous dps runs has always been a thing, and probably always will be. However, the minstrel buff is getting nerfed and will no longer favor melee classes (and I'm pretty sure that was the only one that directly did so) and a lot of fights have situations that favor ranged dps over melee anyway.

Show me your parses with fire or lightning "sustained dps (2-5 minutes)" of around 1500-1700, AT RANGE, on a single training dummy without help or buffs from other classes.
Two problems with this: First, I don't have the best gear or the best setup nor have I ever claimed to have it. Those parses in those threads are by people who have the time and the wherewithal to gather the best gear and jewelry and whatnot that exists for the sole purpose of putting out the highest numbers, and I simply do not have either. Even if I did have the time, assembling a glass cannon super dps setup to go wail on a dummy with is hardly something I would consider to be the best use of my time in any case. Second, fire is the highest dpsing trait line that we have, and fire parses on training dummies are impossible due to DoT resets, which you'd know if you'd ever tried one.

Considering what I can put out going lightning on one of those dummies even with my relatively mediocre gear, I find it rather difficult to believe that the people with the best gear couldn't hit at least 1500 sustained with lightning on one of them if they kept trying so as to get one with an inordinately high number of crits. But given that no one apparently feels the need to post any RK parses at all anywhere, I guess we'll just have to keep making baseless assumptions and rely upon vague anecdotal evidence.