Though I think that that particular issue extends well beyond merely an issue of selfish DPS being poorly rewarded -- I mean, just look at the personal dps of the two; high-ranked MNKs already defeats high-ranked SAMs on pDPS alone in all but 2 fights -- I have to agree with this.
That said, I'm not sure I want an entirely selfish ranged DPS anyways. One of the things I so love about a mobile ranged job is its ability to see all and engage with all; that can go somewhat to waste -- however slightly -- if the job is wholly selfish. I'd just like to see a Ranger job or the like that can be a bit more selfish (with Bard seeing some adjustments in the other direction), and with its supports more target-focused as a coin-opposite to Bard, etc. Though that, too, will have to be balanced in context.
