You are pretty funny.
“But the only way classic ID can be “tested” is to meet and interview the designer.”
You make it out like ID is the only thing that has to be tested by knowing the designer. I would posit to say that ALL aspects of science, which you believe are testable, were created by some unknown source,... so how are they testable? Point me to one example in science where a designer has been interviewed... and I’m not talking about just applied science.
As a Scientific Theory, classic ID (not what is being described in the article) posits - in fact requires -an intelligent designer.
TToE, like all other proper Scientific Theories, makes no such statement and thus has no such requirement.
I do hope I do not need to once again explain what a Scientific Theory is (although it has been a while). That will be impossible on a tablet which is what I am using.