They made a slight change so that people with low levels of disability wouldnt get as much support and paired it with making getting a job not cut off all disability benifits immediately. When that change got huge amounts of pushback from labour MPs they watered it down. Then a private members bill (So coming from an individual MP) with no support from the government got passed allowing people who have less than six months to live get assistance in ending their own life if they get approval from a panel of a judge and care experts, that change has overwhelming support in the country.
The grandparent post is catastrophising.