This news is very interesting in light of the RYR air crew battling RYR in The Netherlands (see
Ryanair pilot strike). In that case, RYR argued that the base changes were needed out of economic necessity. Initially, RYR lost that case as they failed to provide compelling evidence that there was indeed an economic necessity, and the court ruled that the base changes were more likely to be an act of revenge to retaliate against striking crew.
This news may provide the arguments needed by RYR to convince the appeals court that indeed, they were (and are) facing the economic misery they said they were. That means that the initial judgement could be set aside.