[London Lite]

Some viewers are idiots though. Arguably it’s those people they should be making the most effort to reach.

Exactly this. I read a post recently on here sneering at The Catch Up, it may well be rubbish especially to older audiences, but it's doing exactly what it's supposed to be doing, targeting a younger Gen Z audience who may not watch mainstream news bulletins. It's digestable news content with presenters who can relate to the target demo and that includes the language used. There have been occasions I've heard Zofia Louise use slang terms I've had to look up in the Urban Dictionary, but it's not targeted at me, so no issue there.

Newsround has been doing the same for children since 1972.

As for the main bulletins, while I miss the RP delivery and straight forward bulletins, they absolutely have to make them accessible to those who would otherwise turn off. In any case, the main BBC One news bulletins are nowhere on the scale of 5 News who with their limited budget make it as gimmicky as possible, including having a mobile phone to read viewer feedback or tabloid style specials.