It is. -qO- only mutes all status-feedback in the console, so I removed it in order to get the actual error message. Otherwise the command would simply do nothing w/o any feedback.
Edit: But since the URL resolves just fine in a browser I think it is an issue on my end.. simply can’t figure out what it is.
Hmmm.. from my understanding all It does is suppressing any console-status feedback. But I will try the command exactly as mentioned in the guide, too.
Update: I stand corrected. It indeed works with -q0- added. I learn something new every day