It isn't, but it is the first true Jupiter analog = very similar to Jupiter in terms of both mass and orbit. That's what the "true analog" means. A planet not much more massive than Jupiter, similar orbital distance and a circular orbit. None of the previously found planets are as good candidates, as they either orbit closer or have eccentric orbits. I can't see what's so frustrating about that. This system or the ones you listed may be habitable, or not. The main point about this discovery is that now we are starting to find Jovian planets that are no different from the ones in our Solar System.

But it has very eccentric orbit which means strong weather changes.

Let's keep speculation at minimum, I created this thread for actual discoveries. This bulletin board has a whole forum devoted to extraterrestrial life.

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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool.
-- Richard Feynman