This was a really weird ramble and I find myself disagreeing completely. As a lifelong gamer, it rings false because I've read many pieces of game critique and reviews which perfectly capture a game's soul. As a game developer, I just find the perspective confused.
I do think video games are art. And that good games can be transformative. But that certainly does not set them apart from any other kind of art. Besides, even if art is transformative and experiences are unique that does not make critique impossible. You can certainly talk about what it does, how, and why it affects you.
Freedom of choice is often limited enough to give a sense of agency while making most player experiences fairly predictable in all but the finer details. Even for games which give you vast freedom, the designers work hard to ensure most players understand the shape of the whole and encounter the most important beats.