It certainly has no direct implication.
ptsb has two major cohorts with a similar issue to AIB Prevailing Rate issue and neither were mentioned by the Central Bank so that would suggest that the Central Bank is not challenging ptsb's interpretation of the issue.
Likewise, the Central Bank is not challenging AIB's interpretation either. So it would probably embolden AIB.
If AIB loses the prevailing rate issue, it will cost them €200m. So it's not worth their while to treat customers fairly in order to try to mitigate a fine which will probably be no more than €20m.
Brendan