By definition, a legitimate, unethical slow roll is done intentionally in order to needle someone in the worst way possible.It seems to me like intent is all that matters here, and he sure didn't look like a guy with malicious intent. He was probably just confused, nervous, or worried that he'd misread the board. Not everybody functions at full capacity with a million dollars on the line and TV cameras everywhere. Especially with two all-ins in front of him. He probably thought that he missed something.