It is still just as productive. What does sitting around mindlessly watching television accomplish? Nothing. What does sitting around reading a book accomplish? Nothing. Nothing wrong with that, they are just different things people do to kill time.
And those fighting games do require skill. That is why button mashers don't get paid to play them in tournament settings. Sure the single player is easy, but those games are made to be played against other people.
Again, it all depends on content, does it not? If you were to watch the Transformers Trilogy, then it is fair to classify that as 'mindlessly watching television'. Whereas if you were to watch The Three Colours Trilogy, you are stimulating your brain with a movie that is designed to make you question symbolism, narrative technique and genre tropes. This makes it very educational and atkin to studying a film degree.
Reading a book accomplishes even more, even if the content does not seem thought provoking. One, you are increasing your vocabulary, two you are being forced to use your imagination, and three you are gaining more information about the world, whether it is useful or not.
What can you learn from Tekken? Had to spam capoeira techniques until your opponent's health goes down? I don't care if the geeks get paid to spam at tournaments, all it makes do is remind me why the world outside Germany economy is so bad.
FPS and fighting games require more skill then action-adventure games.
No my friend. You telling me that all of those FPS games on X Box and those Call Of Duty games require skill????? Running around and gunning people with sub machine guns doesn't take skill. I played Call Of Duty at my friend's house online and I HATED it. Whoever sees the enemy first will win, that's it, simple.
Also, Last OF Us is a SURVIVAL HORROR with action elements. Do your research please.