Ooooh, that's a conversation starter OP!
Unreasonable? No. Good observation.
BBC news has becoming many things other than news:
self- advertising for programmes such as panorama, journalism on the cheap - regurgitating 'bits' of items that we also see on e.g. 'The One Show / Watchdog , promoting 'viral' videos / You-Tube clips ...
Journalism is evidently done ' on the cheap' these days and I very much suspect that internet forums such as Gransnet are trawled and topical items then picked up as subject matter to generate interest and pad out daily news / local radio programmes.
Is it because we are bringing up a generation of non-readers - well no, not BECAUSE, but I think it is symptomatic of the general dumbing down for an audience that the beeb perceives to have less time or will to focus on extended coverage ... a 'soundbite' generation.