It drives me nuts
I managed IT teams for 15 years (before deciding to jump on the Security Gravy Train), often working on a mix of Projects, BAU and fire-fights - the thing I always brought into the teams was bi-weekly planning, consisting of
1) What the business needs
2) Research, Testing, Individual pet projects (this is really important, it lets people build their interest and expertise, which benefits the company)
3) An allowance for firefighting
Look Ma, I was doing Agile, more effectively that than the "experts" and years before it became cool!
The basic theory of Agile is good - Its all the rest of the shit that comes with it, and don't even get me started on its bastard child - Scrum. I was a member of a Security Team that originally "adopted", along with all the bureaucratic shite that comes with it, I swear the productivity on the team dropped by double-digit percentage points.
Then along comes this new methodology, called Agile.. We must use "Sprints" such a new way of thinking (2 weekly/other period of planning), it requires "Spikes" for when things are unknown (oh look, research)