Their tracks are all produced by a guy named Christian Hirt.
Listen to Croatia Squad, EDX, Calippo, Nora En Pure and you'll hear all their tracks have the exact same drum pattern.
https://www.discogs.com/artist/194645-Christian-Hirt He's officially on a lot of tracks from his label Enormous Tunes, but probably ghost produces most, or at least co-produces.
That's a tough example since it's 3 songs in one (original + remix + edit). Have you heard the Bontan remix without the Plesaurekraft edit? The original and Bontan version are 100% deep house. And I just checked a few online sources which verified that. I'd consider the Pleasurekraft edit to be deep house, as well. http://www.beatport.com/track/got-a-feeling-bontan-remix/4080055
Also, "shallow" is not a genre. It was a joke by the mods. It was not intended to be a genre. Look at the mods flair in this sub. "Kiddie Pool Curator" and "Knee deep". There are genres that already exist, like in my comment, to label "shallow" sounding music. If you need to label something as "shallow" then you probably don't know enough about existing genres.