(a) My school didn't offer a software engineering degree. Very few in Canada do.
(b) The first electrical engineers (and mechanical engineers, and civil engineers) did not have degrees in that field--they invented it. The field of software engineering is still very new (especially compared to mech and civil), so it's not reasonable to expect everyone who practices it to have formal credentials.
(c) Being a stickler about credentials is a stupid way to behave. Obviously, engineering credentials are important safeguards in many fields (someone needs to approve the bridge, airplane part, etc) but software doesn't have the same safeguards. (Whether it should or not is a completely different discussion.)
(d) None of this is really what the article is about. It's simply saying that how we describe our profession is important. I work in software full-time nowadays, and although I still wear the ring I usually describe myself as a "software developer" when people ask. It doesn't matter though, because the next question is "what kind of software" and then I focus on the value of what my software does, relative to the person asking.