I think Andrew Rawnsley in today's Observer is accurate in his assertion that her departure has threatened to bring Labour's anxieties to the boil.
In this article he quotes Sir Laurie Magnus's (The PM's Independent Advisor on Ministers' Interests) in praise for Ms Rayner but nevertheless pointed out "she should have taken more care to be sure that she paid the correct amount of stamp duty on her flat purchase and her failure to do so was unequivocally a breach of the ministerial code.
"I have huge sympathy for Angela but she had to go" says one cabinet member close to the PM. Sir Keir had pledged a tougher standards regime and to be merciless in the removal of ministers, however mighty or popular, who transgressed. He could either stick to that pledge or start becoming a version of Boris Johnson with a neater haircut. He chose to be "Mr Rules"
So that says it all really, it's not about the baby at 16, the green trouser suit, vaping in an inflatable, a visible tattoo, or as one poster suggested, " the right wing objecting to the likes of her buying a second home" It's none of that as far as I'm concerned, I'm all for our politicians coming from working class backgrounds, who would and should have more resonance to a huge swathe of the electorate. Give me an Alan Johnson any day of the week over the smacked arse faced Eton/Oxbridge/Political Adviser ascending the conferred trajectory to the position of PM, because "I'm worth it and I was born to do it", attitudes typified by other demographics who we've had inflicted on us. It's about the fact that the people who we have been elected to preside over us whatever background they've emanated from, need to play by the rules, their own rules, otherwise how can they sit in judgement on the rest of us.