Adult Tourist Day Pass includes Bus or not?

I am traveling in Hong Kong for 3 days and using public transport, so I am planning to use Tourist pass instead of normal Octopus. From the official website, Tourist Pass includes MTR Bus as well, but you mentioned above that 'except Bus', making me get confused. Can you please clarify it? In addition, if I buy online, I have to order 3 tickets (for 3 days - 72h) and collect 3 tickets. Is that correct? Thanks.