I could actually install and run it using Bottles, with less effort that Lutris. Though the client can't load any web resources, and I can't install anything from it.
Winetricks is enabled. I actually managed to get past this issue by selecting another installation folder, now I'm able to technically complete but not complete the installation, as after the login-screen of Battle.net it hangs on this instead
"I'm doing my part!" They say with a smile as somebody gets got by the gestapo.