I really think it is worth highlighting what Faire D'income said:
In 3 of the high profile incidents mentioned in this Morning news stories it appears that the operator failed to report the incidents immediately, as required, in one case it was IALPA who raised it months after the event.
Does that really sound like an airline who has safety as their first priority?
More to the point, although we may never know if they are, the IAA should be all over RYR for that point alone.
As has happened all over the world, notably the USA, the regulatory authority makes their money from those who they regulate. That kind of system will never work 100 % correctly. The IAA have seen a massive increase in their revenue as a result of RYR's expansion. The weight that that carries is the main reason why RYR has remained on the Irish register.