While the author of the article uses Ellis' terminology (the ABC stuff), his position seems to be rather different. "B therapies" advocated for by the article would be purely cognitive, like pure-form cognitive therapy or insight-oriented psychodynamic/psychoanalytic work. While Ellis is also concerned about maladaptive cognitions, the cornerstone of his position is that cognitive insight alone rarely leads to change. Hence therapy should combine cognitive, behavioral and emotive interventions.

The behavioral interventions of CBT also don't fit into the blog author's framework. They'd be "A" or "C" therapies.

I do agree with the author that the term "psychotherapy" should be reserved for therapies that contain some amount of "B" work, but I don't think they need to be B-only therapies. Managing symptoms or creating a safer living environment can be important aspects of good therapy. I just struggle to think of symptom-management alone (e.g. mindfulness exercises and medication) or environmental change alone as "psychotherapy."