I have my complaints about Agile, but a bit different from this list. Teams I've worked in have generally tried to spec in quality control measures into story points, to prevent some of the issues mentioned, for example.

My issue is almost always just that the top half of the organisation does not, and will never, conceptualise a software project like agile demands. Business will always want X scope within Y time. And Agile demands that at least one of those to be variable. The backlog represents scope organised by time. Want X features complete? Check the backlog to see when they'll be done. Want to deliver after Y time? Check the backlog to see what features will likely be ready by that time.

But business will not accept that. They have scope requirements and deadlines to deliver within.