I don't know whether the 1,5% pass rate is still true or not, but I can assure you that it is still very difficult to be accepted. I had my selection day one month ago, and I saw brilliant people (engineers, people with PPLs, people with other degrees and a lot of experience...) going back home with a "thank you but you don't meet our standards".
This is, at least, for the Cadet Scheme. Of course some of them will be offered the ICP route, although that's a different thing