Here's a thought, can the Raider do anything But be a punchy cruise missile or the best (but most fragile) close-range AA platform?
Even the outdated VSDs can still have some flexibility. Sure they're slow and XI7s really hurt them, but they can still be carriers or gunships serving as understudies for whatever stars you have in your list (like ISDs or Demolisher). I mean, until I see some reports otherwise about the RDR doing well someplace else, I think what dooms this ship is that it's really niche. A one trick pony.
Because when you commit to using a Raider in your force you're pretty much committing to, at some point or another, charging it in with huge dice pools to do all the punching it can, hopefully killing ships before its inevitable death. Compare this to every other ship in the Imperial lineup, which handle themselves well enough against most other kinds of lists.
While I'm glad the RDR seems to have a clear function I can use to build with them now, I find I'm not ecstatic about this revelation. I'm still being asked to fly them into harms' way where there's a great chance they'd be shot down, and I'm handing points to my enemy. There's no guarantee they will last the entire game to net me a large MoV in a tournament. There's really that one strategy that I could use with them, it's a gamble, and requires particular things out of my list construction.
Compare this to ISDs, which are great all around as carriers, gunships, or both. Also compare this to the Rebels, which have a large amount of flexibility with many of their ships. *shrug*