It's true some people cannot afford to cook food and need to rely on food that can be made from a kettle. I've seen that myself.
I wonder if it's been blown up by the paper from someone who is genuinely struggling, trying to make ends meet who mentioned things which were then taken to taking the piss.
We had something similar happen here and the journalist went for sensationalism, trying to get their article trending (hence me noticing the head of trending being involved) and ended up getting handed their p45 for doing so. Caused a huge amount of distress - it won't about UC but something else.
I know someone who was a journalist before becoming disabled who wrote an article about disability benefits which by the time it was published was totally unrecognisable as was he. The only reason he didn't pursue it was because he would be linked with it - it was that bad.