I do work for RYR, so while I may be a tad biased, I can also say that before working from them, I was in PLD at the CAA.
I'm pretty confident RYR do ask for a copy of your exam results, and while it wasn't the case when I joined (even though I passed them all first time), I hear they look for first time passes in all exams/flight tests at the moment. My CAA knowledge tells me though, that someone unfortunate enough to have had to sit them all again, receives the same certificate once passed second time around, as someone who passed them the first time. So, unless the guy was asked/(and/or)told RYR this had happened they wouldn't have known.
Just throwing that out there, as I don't believe the statment above to be true- "That says an awful lot about Ryanair really doesn't it" - coming from someone who clearly doesn't know what they're talking about.