And also because it's a comfortable cover up for any kind of money saving stupidity. We don't need proper requirements engineering, we're agile. We don't need an operations team we're doing an agile DevOps approach. We don't need frontend Devs, we're an agile team you all need to be full stack. I have often seen agility as an excuse to push more works towards the devs who aren't trained to do any of those tasks.

Also common problem is that still tons of people believe agile means unplanned. This definitely also contributes to projects failing that are just agile by name.