A presenter/broadcaster making 2 documentaries in 2 years is 'milking it'? I don't think so.
I think she is making us aware of how awful Covid can be, how it impacts a family, the practicalities of caring for a very unwell person/adapting the home/lives, the emotions everyone is coping with , finances etc.
Kate, already being in the public eye, is in the position of being able to educate and inform and shine the light on the severe shortfalls in the NHS and social care system which fails carers badly and causes a great deal of stress in dreadfully difficult situations.
As a person in the media, and watching his responses to being asked if he wishes his story to be on film I feel Derek is happy to want to raise awareness of his plight, that of his family and of other sufferers...and tell his story.
Kate looks very drawn and too thin, the pressure she is under is immense and she deserves respect. She clearly loves her husband and to see the love between the children and their father is very touching.
Personally I wish them all the very best and hope for the situation to ease up for all of them in the future. It's very sad.