I also doubt they are intentionally biased against a particular franchise. However given RA and the Wallabies staff (outside of the players) have pretty much no WA representation, would visit the Force far less than the other clubs (due to it being further away and inconvenient), and likely watch the Force games less often (pure speculation but likely the case), I think there would be a fair bit of inherent unintentional bias.
The evidence seems to confirm this.
Sorry, I'm obviously just very pissed off at losing one of our best players in FLW (Fergus Lee-Warner) overseas and then seeing a recent fringe wallaby get a top up (no matter how small) after the very long history of the Force struggling to get anyone on a top up and therefore being well behind in their overall squad salary.
You would think it's well worth the while of Rugby in Australia to get in touch with anyone in eligible Australian in super rugby who has been performing well to let them know they're on the radar and what areas of their game they need to improve on to get a look in. A few phone calls is far cheaper than actual top ups, and would likely result in a lot more of the fringe players staying in Oz in the hopes of eventually getting into the Wallabies.