As JOE-FBS said,I think the BBC editing is mostly to blame.
Sq Ldr Lovett was given time for two lengthy stand-alone sentences, where he stressed that interception meant identifying the aircraft, then taking appropriate action. He also pointed out the GA aircraft were at the low-risk end of the spectrum.
Waterfall was clearly answering a question. We do not know what that question was. An anonymous voice over asks a question while we watch the wobbly sniper rifle, but were they even said on the same day, let alone in the same conversation?
The BBC edited interview with Waterfall claims that there is only one "potential threat", which is is a "bumbling GA aircraft". No sane person would go on the record with that. I suspect he didn't.
Like most TV "news" this was all about exciting pictures, and nothing to do with facts.