Jaguar, Homebase, 4Music - is brand design melting?

At first I wondered if this was clever piece of sarcastic reporting from Design Week, but sadly not. Today's three headlines are all press releases around 'rebrands' that don't amount to much more than tinkering with logos.
4Music gets filled and slightly rounded
Homebase gets locked in a graduated circle.
Jaguar has a polish and a typeface from 1985

Has the economic climate removed the spine of Brand Managers across the land? Or is there a surplus of cash in the city which has lead marketing teams to throw money at brand agencies for very little work?I'm sure behind the scenes there are piles and piles of life draining powerpoint presentations justifying the deeply significant strategic decisions behind these micro changes, but I would bet changes of this scale will not change the fortunes of these organisations.