I know I have come very late to this - only just watched the last episode today - but it feels a bit like the medical care is "how we wish it was" with the staff attitudes. I could be wrong though. Probably am...
For me, I found the sad ending for Patsy and Delia quite heartbreaking. Especially Patsy going back to the flat alone and cleaning it all up. I don't know whether that was supposed to show from her childhood that so many people had died or been lost to her, she kind of felt like it had to be that way. 