Interesting reading indeed and the events are now widely discussed even though they happened only a few days ago and the news is online for only about 24 hours. In contrast to this quick reaction, it took several weeks for the Ryanair maydays to emerge and be discussed.
To me that shows there is no conspiracy against any particular airline at all as was claimed by some: what I learn from this is that when things go wrong, they will make it to the press and they will be openly debated and analysed in all possible detail, regardless the airline involved.
As somebody noticed on that avherald forum, it definitely is a good thing that fuel related emergencies are now clearly considered to be much more of an issue than they used to be so far, because contrary to other kind of operational emergencies, they more easily happen to several planes at the same time and can thus have significant knock on effects on the entire airline system, thus jeopardising the safe completion of other flights which happen to be in the same airspace.
In this context, I once again suggest the Ryanair fans to drop the calimero attitude they have demonstrated so far: clearly nobody singled out their airline at all; the general attitude towards what Ryanair still deems normal operating procedures has simply changed and the public at large doesn't feel it is such a minor thing any longer, righfully or not.
Finally, as has been pointed out already, we don't know yet if any of these 3 intercontinental flights landed with less than the minimum legal reserve fuel In Buenos Aires, (un)like one of the ryanair flights did in Valencia. So far we only know 2 of the 3 flights decided to declare a mayday due to them nearing their minimum fuel reserves, which if I remember correctly both Tolipanebeas as well as O'leary said was the normal thing to do for a pilot in order to avoid landing with less than the absolute minimum legal reserve, so just what exactly all this is supposed to disproof, I really don't know, other than what I have tried to make of it above, but then I doubt that was your aim, fcw?
Just accept that the general attitude towards what your airline still defends as normal practices may have changed completely unnoticed. You definitely do not want to be left behind on something as imporant as safety expectations from customers, do you?