And the graduation rate?
I'm not being difficult BTW - I've got a couple of degrees, a reasonable selection of pilots licences and a low-level aircraft inspection qualification - none of which were easy to get; I also teach on an Aeronautical MSc course (although not that one).
My experience is however that even people with a Batchelors degree find the study experience of an MSc pretty intense, plus that the level of analysis and quality of writing on (say) an ATPL is far less than that for any degree. So, whilst I'm more than willing to accept that an ATPL holder can gain an MSc without a first degree, I'd be surprised if either they "do not seem to have a too much of a problem" - I'd expect them to be working ******* hard (my degrees were both far more analysis-intensive than, say, my CPL ground exams). I'd also be very surprised by a 100% graduation rate.
The reason why an MSc is a valued qualification is at least partly because it's very hard to obtain!
G