You make some good points BH.
I agree that on form Beale and JOC (James O'Connor) would probably make the extended squad but not the final 31.
But form is only part of the equation. Both players have had long test careers, having played in huge games. Both have on occasion been central to some of our biggest wins over the last 5 or 6 years. Both have won us games with clutch last minute kicks and tries. Both have stood out, on occasions, against the likes of the All Blacks. Both have the experience of slotting into less familiar roles on short notice.
I think both players' test records have suffered slightly as a result of a lack of pure 10/12 options over the last 4 years. Both were moved from their best position to 10 which diminished their effectiveness.
I'd say JOC (James O'Connor) has been slightly more consistent for the wallabies, but I think part of that is due to Beale having been dealing with a number of personal issues over the last 4 years, including presumably a drinking problem, which saw him come into a few games both physically and mentally out of shape.
I'd say the key to Beale is using him effectively. Mentally and Physically he looks to be in a good place right now. The problem for me is that he's a fullback, not a centre. The Tahs use him to fairly effectively at 12, but I'd suggest that they wouldn't play him there if Folau wasn't at 15. He's got a good boot and is a dangerous counter attacker. Personally I think creating a defensively staunch backline for the wallabies is paramount for the world cup, meaning no poor defenders in the line. Beale's strengths and weakness mean he is best left at the back.
With JOC (James O'Connor) I'd say it's more getting him mentally and physically right. He recently complained that he's been struggling with niggling injuries this season and its shown. I think the month off will help a lot. I suspect he'll also benefit from playing under a better coach/team environment. I lot of players have been underperforming under Richard Graham for a few years now.