The reason most people who watch Jinsy will think it's genius is because nobody watches it under any illusions of its content - you know it's ludicrous, surreal and childish before seeing it and if you know that's your kind of humour then this will always tickle you terrifically in the tenderness of your titter pouch.
It is Monty Python/Goodies. People say The Goodies is a children's version of Monty Python's surrealist humour - Jinsy is the Island lovechild of their humour. It's like a place in the world where this humour sadly got put in a cardboard box over 30 odd years and has lost what little there was left of its mind and has recently been found and unboxed to confuddle and delight us all once again.
It is adult, although it never swears (unless you are native to Jinsy in which case it's terribly crass and appalling language), and it is just two very childish writers/actors/friends having a lot of silly fun with nonsense ideas that a seven year old could spin off high on sugar.
I envy them massively.
With a guest list involving so many brilliant people as well, it's just got the parrapawow-pop on top of the pong-shwing of swell. It's no low budget attempt at low logic laughs.