When you have two equal type of frequencies, you have no influence what frequency the ATC will be used. That´s a part of the sim and not a part of the data. In the stock data you have only two frequencies of different types therefore the sim has only one choice of each ATC type and therefore it looks good for you.
But again, you have (not only we) no influence which frequency the ATC will be used, when you have more than one equal type.
The charts are the official one from the AIP Austria. As I wrote and as you also see on these charts have two different frequencies for the AD Operation. That DOES NOT mean, both are in used but there are two frequencies available and official published.
Also as I wrote, the source provider uses only the data which they are receiving from the official government of each country in their standard-records - and the AIP Austria shows/publishes these frequency, that´s fact - believe it or not.
Last, the ATC type of both frequencies are INF for Information.
Here are the official links from the AIP Austria - when you mean something is wrong here or outdated, please report this to Austro-Control - thank you:
AIP Austria - LOAV:
https://eaip.austrocontrol.at/lo/210101/ad_2_loav.htm
Here the directly link to the LOAV airport charts, which I have used for my screenshot - also directly from the AIP Austria:
Cheers,
Richard