One thing I'll grant Agile is that there's a great deal more standardized technical topics and standards meaning expectations when using the term. With devops, there's a massive difference between how big companies (old, archaic companies by tech company standards) perceive of it compared to how smaller companies do.
My current role was sold to me as a "devops" role with the usual jargon of automation - I can't think of how this role has actually prepared me to pass a serious interview as an SRE at Google, Dropbox, Yahoo, or other tech companies. What really has happened after looking at all the recruiter spam and some of the interviews I've taken on a lark is that the term has become another way of marketing to engineers with modernized skillsets when they can't retain good ones for more than maybe two months (during which time the engineer is interviewing for another role almost certainly) because good engineers tend to run away from these companies for many legitimately founded reasons.
