Sorry, I do not speak German so I don't understand the first part of your post, nor the linked document concerning national parks.

We have the Hohe Tauern national park that you mentioned. If you cannot see it, perhaps that is the problem as you have so far not acknowledged its presence in our charts.

There is no "airspace" to avoid for national parks in Austria, because there is none mentioned in the AIP. As an international pilot flying into Austria, all airspace that is prohibited or restricted in any way must be in the AIP. It sounds like perhaps information about these areas is deliberately vague, and meant to scare Austrian pilots into avoiding areas that are technically not promulgated aeronautically?

Generell gesprochen, alle Überflug unterhalb 5000m App. 15.000ft war streng verboten. And be carefully, the people who live there, reimburse police report, which violates the airspace

I know we have many nature reserves in our Austria maps, but I do not know where Großglockner is so I can't check that one. Could you give some example coordinates?

Unfortunate AIP Austria does not list any such sensitive areas. In fact under ENR 5.6 it says "nil".

As for a high penalty, that sounds unlikely. Austria has an ICAO obligation to publish all areas relevant to aviation in its AIP, and as mentioned above, there are no such official areas. Not under any ENR section that we can find.

Wir are missing the Natural Protected Areas in Austria. These areas, especially around Großglockner are not signed in the maps. In these areas an overflight was absolut prohibited under a high penalty. Is there a chance to get these datas in the near future?