"I can understand your frustration but i don't see the merit in EASA releasing their official database. This would totally nullify the integrity of the exams and thereby the qualification gained from them, too."
Well.
The thing is that we have pretty known 2rd party who claim they have full coverage in their application. Now - from what I know and you can read that all over EASA internets there is solid bunch of people who do learn from that bank and not from handbooks. Most of these internets claim that indeed that 3rd party bank has VERY SOLID coverage of actual questions seen in exams.
And technical interviews? They are just proof that all these 14 exams are a joke. You can have FAA ATP style exam and no one would die anyway.