One set of people seems very concerned with defining exactly what Agile is. They want a particular set of practices done in a particular way at a particular level of discipline. From them we hear the constant refrain “that’s not Agile|Scrum|Whatever” or “Kanban|Whatever is/is not Agile.”
Another set of people feel that Agile is a spectrum. A given team may be more or less Agile. They focus on the values and way of thinking. If you think Agile, then you are Agile regardless of your degree of practice. From them we hear the constant refrain “you can’t do Agile, you can only be Agile.”
They’re both wrong.