Fuck Sony by going against this small company compared to Cloudfare and Google.
As they mention, it was an attempt to set a precedent. Better chance of getting this if you can beat a smaller firm, then they can go against the larger ones.
There is no system of precedence for rulings of lower courts in Germany, technically not even for higher courts (albeit there de facto is). That’s something you could find in the U.S. though.
The lower court fucked up and it got overruled. The only thing Sony could have done would have been to bring similar cases to the same lower level court again and again and hope they make the same wrong decision over and over. That’s about the closest thing to precedence they could have relied on. It probably would have worked for Sony though.