As I read the PD article, it appears Metroparks is contracting water taxi service with only this one boat. Seems they would need more than one boat to offer true, and frequent, water taxi service. The old rather poorly run (though still fun) Holy Moses Water Taxi ran at least 2 boats, and even then many people were standing at WT "stations" waiting for the rides... Surely 1 boat won't cut it.
In the olden days (circla the late 1990s) Holy Moses even had an agreement with RTA whereby, if you had an RTA ticket or pass for that day, you could ride the Water Taxi for just $1. This was very forward thinking and encouraged Flats patrons to park their cars and take the Waterfront Line which, in those days, ran until 2:15a on summer weekend nights... Fat chance we'd ever get this kind of arrangement with the current anti-rail RTA management.