Those components in any type of therapy are not EFT, they are cognitive behavioural therapy, in components within a broader therapy. Positive affirmations are not EFT, they're CBT.
This is actually not the therapy, but the therapist who mixes therapy types into the equation to meet what is going on. It's like a therapist telling you that all they use is CBT. Ok... complete nonsense. The moment they sit there and calm you or try to get you to relax, they're using Person Centered Therapy and Stress Inoculation Therapy (Relaxation / Mindfulness).
It is extremely difficult to actually use one type of therapy on a person. Those who attempt it are also those who fail 99.99% of the time with clients, as they're trying to brainwash them with some nonsense where they simply will not move outside the scope of x or y to meet what is happening with the client.
Yes, agreed. The tapping and some other parts of the session are EFT, the rest are other techniques. And it would be incredibly foolish and selfish of any professional to use one "counseling theory" on every patient because treatment is not one size fits all, as you stated.