And I agree Prairieflower these sort of articles claiming to speak for the "squeezed middle" but which are actually about people in the top percent who earn £100k or more also leave me perplexed.
There was a thread recently about an article from the Guardian, also about how poor people felt on the income they earned and I think most people interviewed were on immense salaries too.
I would have felt that the 'squeezed middle' were people in professional careers who earn £40,000 to £60,000 odd, who aren't eligible to claim much by way of benefits or state assistance but are feeling the bite in terms of childcare costs, professional registrations and memberships, taxation, council tax, mortgage, school fees, etc.
I always assume that the reason so many of these articles are about people on £100k plus are that the journalists generally speak to people they know, or have acquaintance with or just are "people like them". So they only have the vaguest idea or interest in what other members of society are about, these articles always tend to be about media types, or those in banking or finance or running their own [successful] business...
Don't see many lifestyle stories about teachers, nurses, archeologists, supermarket manager, etc!