Today was the grand opening. I only went to DAAR once from DHS, but no one got on at the park or at the resort. It was like a ghost town at the resort and I didn't see anyone waiting at the DHS bus stop.
One of the reasons they do it that way is to discourage sales of partly used passes. One would hope that if the purchaser does not know for sure what is left on the pass, they won't risk the money.