I'm quite sure this building is an X for medical and experiential reasons. Not exterior architectural design. Aka when you are elderly and bed-ridden all day, everyone gets a view. Think of the hotels in Vegas, they are shaped like this for view purposes.
Almost certainly; don't forget that in assisted living - even dementia care facilities - not all the residents are bed-ridden. Many of them are surprisingly active.
Affording everyone a "view" not only ensures the place is bright but much more critically that the residents, whether they have some variant of Alzheimer's or not, get to experience the visual stimulation of something other than a cold white plaster or concrete institutional wall. Thankfully this isn't the 1930's and we don't condemn our aging parents to such places anymore, I would like to think in large part because we're living in a more enlightened age.