You are completely right. Shiny Pokémon should and must be rares.
The point is that I noticed that people that don’t play the game daily use to have much more luck(with shinies) than players that play it everyday. I’m telling because that’s what happens with the great majority of players in my city.
It sounds like Nantic says to “Ocassional Players”: Hey, come and play me pls, me give you shinies so pls play.
And to “Daily players”: Come on you piece of Regis you already play the game get off we dont need you.