I don’t see it that way. I think you can set an intention to observe choicelessly and then, in fact, observe choicelessly. (For a while, usually not long.) I’ve done it many times, and I’m no meditation virtuoso. It’s like going out into the weather: You make a decision to open the front door, and there it is.
But I agree that Krishnamurti’s ‘choiceless awareness’ is a different beast, which is why I didn’t use that term. Choiceless awareness aiui involves no choice at any point. Any intention to ‘practice’ choiceless awareness, no matter how skilled, is doomed to fail. Instead it has to happen, effortlessly, motive-lessly, emerging from a whole-istic understanding of self and reality.
I am skeptical that this kind of effortless goalless choiceless awareness actually exists, manifests. I’m not asserting that it doesn’t (how would I know?), just doubting it like I doubt other extraordinary states of consciousness spoken of in spiritual traditions. The human brain is a master at fooling itself and others, I’m always on the lookout for smoke and mirrors.