Don't know if Mr. Justin Sun is unaware of his interviewer or he's not getting enough coverage so he has to take help from an already tarnished name. Mr. one man army of torn too had many controversies and accusations last month. He's day dreaming of having dinner with Warren Buffet turned out to be a joke. And he had some police investigation going against him in his home country.
I'm betting that he doesn't care regardless of who the interviewer is, as long as he's getting the publicity that he wants. He's definitely very excellent and effective at marketing his project, I'd give him that; even though his marketing is mostly inaccurate and misleading. Though his project barely does anything right now besides those unnecessary tron-specific betting sites.