Hey Stefan, I'm curious if you have made any headway with this issue. I followed a link to this post (Google Analytics with rest connector | Qlik Community). I am experiencing the same issues you are in regards to the data parsing. Everything shows up as a single column.
I'd be curious to see if you've sorted this, how you did it and if you could assist me. Every response I've gotten has been essentially "pay for it". I agree that we shouldn't throw money at something that is already available for free.