I concur with your observations. I only know of three people from my FTO that have been called in the last 7 months! I think I actually applied before two of them and I've not heard a peep. Only thing I can think of is that they are all from the continent and looking through this thread there also seems to be quite a few Spanish and Italians that have been called...not exactly a strong argument but perhaps they are using a geographic filter? As you say XO, there's no part of the CAE form that allows for ATPL exams pass marks, flight test results or anything.
Also worth noting that if you do receive the email from CAE for your CV they require at least one flight hour logged in the last 6 months...good job I've been flying regularly, just need that email now!!