He asked if it was possible that the technology could be used for humans since it was being studied clinically & scientifically on external surfaces and showed that it was successful against the virus.Your link talks about UV being used for sanitation. Trump was talking about putting UV and disinfectant inside the body. You were saying what about distracting from the topic?
He never said to inject anything specific and just mentioned "disinfectants" as a term to counter "infection".
You are grasping at straws.