Ha haa, this is "almost" funny, eventhough very sincere
The 5th line that clutters up or "rips" the kite in half
It seems, seing from "outside" (I have had 5 line kites, but only rare), that these tangles and ripping the kite in half, CAN happen.
But extremely rare...
There are huge advantages regarding almost full depower, self landing in extreme conditions, and relaunch in light conditions.
So, in my eyes, the reason why everyone contributes so extremely either "pro" or "con", is their personal experiences.
But as these experiences will be influenced by the extremely rare, BUT possible tangle and destruction - we see a lot of black and white opinions on this very topic
Dont know if this post is helpful at all - but at least it might tell the "opposing" part, why we always see this picture and opposite opinions regarding 5 line kites
Some has never had serious issues with tangling or kite being destroyed, meaning 5 lines is the best.
Others HAS had these problems, meaning 5 lines is almost banned, and to be avoided.