My town had a lot of early agile projects in the first part of the decade. The consultants only talked about the successes and not the many failures at conferences. Specifically WRT scrum and XP. I can tell you about a scrum failure that was in the 10's of millions of dollars.

I've had many negative experiences with less effective consultants using agile as a way to convince the client that they are all wrong and the only way out is more consulting guidance. In fact, I worked for some time at a consultancy where I am sure this was their business model.

There's more than one path to the finish, and "agile" sold itself out as a vapid marketing term years ago.