I think you are wrong and misjudging this. I have not seen any evidence at all that post-June-26 applicants are getting priority. >J26 (will call it <J26 for pre-June-26 and >J26 for post-June-26 for simplicity!) applications arrive at the visa office already at the needing-background/security/medicals stage.
According to ECAS our application arrived at London visa office at least 1 month ago, yet we haven't received a 2nd AOR yet (i.e. London has not begun looking at our application yet). This to me suggests it is because they are still looking at <J26 applications which have reached the background check stage. Not a single >J26 applicant from London office has heard anything yet.
Of course, once >J26 applicants go "into process", if everything is in order with their documentation and no verification checks are needed, then medical requests are issued more or less straight away. But that's to do with having a different process, not to do with getting priority over <J26 applicants.
As I mentioned in a previous post - we also had a 2 month delay before we could even APPLY because we had to get IELTS and all supporting documents before we could send our application to CIO in Sydney. So I really don't think overall >J26 are going to be any faster than <J26. We've now been over 6 months and still not had 2nd AOR yet, and that doesn't include the 2 months we had to spend gathering documents before we could apply.
As for fairness, do you think it's "fair" that post-Feb-2008 applicants get priority over those which applied in 2006 and 2007, and have been waiting 3,4,5 years? If you are going to label a process as fair or unfair, then you must also apply that to those less fortunate than you as well.
Regrettably the process does not revolved much around fairness, but more around current Canadian labour market demands, which is why post-Feb-2008 and post-June-2010 applicants will get priority over the "backlog".
Wayne.