The Ravens really are not hurting for living space. Remember, they went from living on the equivalent of about 4 worlds to about 40. In addition their overall population probably was cut to maybe 10% of their 3067 population (my estimation for this is that they went from about 97 million to around 10 million, though I feel this number may be a bit high). And while they could certainly provide the limited required technology to the waste worlds, I doubt they felt it was much of a priority.
Lastly, the clans in general - and the Ravens are no different - focus much too heavily into the very near future, they might have a 1-year plan, and a general idea of the way they are headed in 5 years, but by no means an actual plan. This feature of the clans severely diminishes the effectiveness of their top-down-based industrial output, particularly as it relates to anything not military.
This means to me that while the waste worlds may like that the Ravens got rid of the pirates, their subsequent lack of interactions probably decreased whatever goodwill they engendered.
One year plan is all you can do when your first bad decision brings a host of Trials of Grievance or Refusal, which can be fatal and which tend to add a lot of turnover in the mix.
I think the Bears got it closest to getting it right in the IS, keep the military Clan, for everyone else they become Civilians. The need for civilian castes is nill, when you have a realm with a population in the Billions, you even get enough diamonds in the rough to inject new blood into your genetic program with Free Births were a clan so inclined.
The Ravens Picked/Conquered the wrong realm, not that they had a better choice. The hippie peaceniks of the OA, were never going to integrate into anything militarily driven like the clans, after all most of them live in the OA to escape that.
Though it could be interesting if they simply took over the Tortuga Cluster, and set up shop there, though whether or not they could keep their tech would be debatable, and whether they'd have enough people would be debatable too.