It sounds like she was emphasizing that that had, in fact, tried to cut Hart out of the interview. The phrase, "One emphasizes" means "I am emphasizing". It is an unusual construct in English in which the speaker refers to herself in the third person. This technique is used when the speaker wants to add emphasis and create some emotional distance at the same time. Compare these two sentences:
"I hope we will be rescued soon!"
"We will be rescued soon. One hopes."