From the outside, though, kanban looks more like "no methodology". If people who aren't on board look at both 2-week sprints and kanban, kanban looks a lot closer to "we can ask you to do whatever, whenever". It's wrong, of course, but in my experience they understand better that it's discouraged to insert new requirements in the middle of a sprint.

People will subvert whatever they want, though. Probably the biggest shortcoming with agile methodologies: "you are not doing it right" -- yeah, well, real people in the real world never do it right.