You're full of shit. Along with bad advice and mistaking reading for insight, you're producing blatant misinformation.
>1. Chan is not buddhism. It is often misleadingly called zen buddhism.
There are actual Ch'an teachers active publically and on the internet. Every single one identifies as Buddhist.
>2. Chan is not about meditation. Those guys you see meditating 8hrs a day are buddhists.
Here is what the founder of your school had to say about the subject.
"What is it in this teaching that we call 'sitting in meditation' (tso-ch'an or zazen)? In this teaching 'sitting' means without any obstruction anywhere, outwardly and under all circumstances, not to activate thoughts. 'Meditation' is internally to see the original nature and not become confused.
And what do we call Ch'an meditation (ch'an-ting)? Outwardly to exclude form is 'ch'an'; inwardly to be unconfused is meditation (ting) . Even though there is form on the outside, when internally the nature is not confused, then, from the outset, you are of yourself pure and of yourself in meditation. The very contact with circumstances itself causes confusion . Separation from form on the outside is 'ch'an'; being untouched on the inside is meditation (ting). Being 'ch'an' externally and meditation (ting) internally, it is known as ch'an meditation (ch'an-ting).
"Be the same as you would if I were here, and sit all together in meditation. If you are only peacefully calm and quiet, without motion, without stillness, without birth, without destruction, without coming, without going, without judgments of right and wrong, without staying and without going - this, then, is the Great Way."
>3. Meditation is mostly unrelated to enlightenment
Same dude: "Meditation and wisdom are of one essence, not different. Meditation is the essence of wisdom, and wisdom is the function of meditation. At times of wisdom, meditation exists in that wisdom; at times of meditation, wisdom exists in that meditation."