The article must be wrong. The PIC can't have all of those responsibilities. After all, they are only bus drivers you know. And mostly their pay packets prove it!
I really get sick of all & sundry wanting it both ways. According to management & the public, pilots are nobodies who aren't worth much & should be paid as such. But when it all turns to poo & those same parties are looking for someone to blame, the focus gets turned on pilot responsibilities & where someone on the day may have fallen short.
If everyone believes that pilots should be paid bus driver salaries, then pilots should have bus driver responsibilities & all the regulatory resposibility should be passed to the CEO of the company. Maybe then the CEO will be actually worth what they are getting paid.