Might argue about some of the sports reporters
but in general this is spot on - it's acceptable on BBC radio (and as commercial radio is worse in every other respect I doubt it is any better here) for a presenter to laugh about their ignorance of science and their inability to do trivial arithmetic.
Even their professed experts treat the subject as though it is something no one could possibly ever understand which has to be dumbed down to the level of the inattentive halfwit rather than being presented properly and allowing the audience to reach for understanding.