Aerosoft is fixing GSX issues now?
Not really. It was just a suggestion we made to the Prague developers to change the title of their objects to use an uppercase prefix, since GSX does recognize their objects (since a year), but only if their titles begins with the "XHT_" prefix, while they were using "xht_" in the first release.
This is JUST a temporary fix. The upcoming GSX update will automatically protect non-Ground vehicle objects and SODE objects, so there will be no need to specifically support new SODE-enable scenery anymore.