I despise Blow but this is a critique that borders on the incoherent. You could just as well say that when you figure out how to hurt enemies without taking damage, you're done with action games.
Neither Braid nor The Witness nor Myst have that quality. Once you know solution, it’s done, it never changes.
You seem to think being a puzzle is an insult. But it’s not, it’s just not a game.
Wentworth and Ravensburg make decent money publishing puzzles. But neither company tries to say this is how all construction should be done. Which is how Blow comes across to me.