A sad story indeed. Made all the more so by the relatively young age of your stepson.
As someone has commented, the notion seems widespread that strokes are an old folks' thing. From personal (family) experience, I also am aware that they most definitely are not, and they can strike anyone at any age.
There may be some in your family who regard your photographing in a hospital setting as intrusive. I've had that response from my own family in the past. This said, I firmly believe that in time your family will cherish those images, and value them as memories of a significant episode in its history.
Of course there will be others in the 'clan' who will refuse to look at them. As I'm sure you are well aware, this has to be respected out of sensibility for their feelings. Trauma can be long-lasting.
I can also understand your need to have made the photos. In such stressful times my photography has helped me to keep my emotions under control, altho' I've done it without interfering with or obstructing what was going on around me.
My photos serve many important functions in my life, Most importantly, they keep the past alive for me, and as such they give meaning and significance to my past life. My parents, one brother, a sister, a stepsister, and all my aunts and uncles are now gone. Also several nieces and nephews.
(Both families had nine siblings and all four of my grandparents also came from families of nine, so the number '9' is somewhat of a family symbol for us.)
I too photographed many family functions and also funerals and hospitalisations. My mother's people were close but combative and highly competitive, so there were many clashes of personalities and even fights at Christmas and birthday celebrations. Due to all these disagreements and what I then saw as 'interfering' in my life by relatives, I held on to several hundred photos which I have never shown to anyone in the family. With the passing of time I realize I now have a sort of duty' to make those images available to other family, and I've been sorting and scanning negatives and slides with the ultimate goal of producing self-published booklets to be given as gifts to nieces and nephews - the original subjects of my photographs are almost all long deceased.
I cherish those images as the only surviving mementoes of my interesting but definitely unusual 'off the grid' childhood in rural eastern Canada, a time that seems to me as remote as some of the 'period' television series I sometimes watch.
Age and the passing of the decades have wearied me. I was born in Canada and I had family all over North America. I now live in Australia and other than my partner, I'm the only one of our 'clan' to have left our home continent to live overseas. At my age, flying across the Pacific to see cousins, nieces and nephews now is too physically draining for me, so I no longer do it. Flights of four to five hours to Southeast Asia leave me so tired that I find I have to lie low and stay in for at least a day after the trip, to regain my physical and mental equilibrium. In the next few years I will probably be too old for even these very brief flights, so my traveling days will be largely over. Such is life.
At my age I sometimes find myself wondering what will claim me in the end. Also hoping my last days and final passing will not be too overly long or painful for me. So far so good. I've been free from almost all major afflictions, although I've had heart problems (now under control) and a few other minor ailments (also being monitored by an excellent family doctor). I now feel I'm slowing down, and while my 'countdown time' has not yet arrived, I'm conscious that my days are now more limited than they were. Which means the photographs I take of the people around me, of our home, even of our cats (we have no children), are now more meaningful to me than ever before.
In time all your people will value those photos. Some may hesitate longer than others to look at them due to the distress it causes them, but most will come to appreciate them - and you - for having made the effort to take them.