First, its a fuel emergency not mayday.
Wrong: all three aircraft declared Mayday, as the Irish Aviation Authority report about the incidents (available here) makes clear.
Second, it was a particular airport due to weather conditions and Ryanair were not the only airline affected.
Yes, but isn't it strange how of all the other airlines using Madrid airport during that storm, only one other airline experienced a fuel emergency and only one plane from that one airline: Ryanair had three planes declaring Maydays. And strangely Ryanair is the only one which has pilots complaining about its fuel policy.
Thirdly, its not an accident, simply a demand to jump the queue and land first.
Mayday is actually a statement that one faces a "grave and imminent threat requiring immediate assistance".
crashing because of incompetent airmanship is infinity worse (AirFrance and many others)
Ryanair only fly the easy routes and do so with well tested aircraft, that's why their accident record is identical to those of the other airlines who do the same thing.