That's ironic since the Agile Manifesto was originally written by software developers, in 2001. The problem is that since then - as Dave Thomas put it in his "Agile is Dead (Long Live Agility)" post

"The word “agile” has been subverted to the point where it is effectively meaningless, and what passes for an agile community seems to be largely an arena for consultants and vendors to hawk services and products."

(https://pragdave.me/blog/2014/03/04/time-to-kill-agile.html)