In my aforementioned example, the set of development practices most often called "agile" was neither the right approach nor what we did. Agile as defined as the ideas in the agile manifesto
might have been what we did. It would depend on who you asked and whatever their particular axe to grind was.
So I don't know, and quite frankly we didn't really care if we were "agile." All we found was that "agile" is simply too lossy of a descriptor for meaningful conversations about development process.
People writing books and blogs about what they mean when they say "agile" hasn't caused the industry to coalesce on a concise definition. That horse is out of the barn, and I don't expect we're getting it back.