In the days before Agile the Waterfall projects failed too. Though not necessarily for being late, they failed because they didn’t deliver the thing that the business thought they were building, they delivered something else due to a misunderstanding. If nothing more, Agile gives more visibility into the process and allows for course correction.
It’s more about poor planning vs good planning. Of course a project with good planning is more likely to deliver in time.
It’s just to that poor planners tend to use “agile” as an excuse for their poor planning.
In the days before Agile the Waterfall projects failed too. Though not necessarily for being late, they failed because they didn’t deliver the thing that the business thought they were building, they delivered something else due to a misunderstanding. If nothing more, Agile gives more visibility into the process and allows for course correction.