Maria's death was suspect
All of the deaths were the same where the people went through the dying stages, and the last stage which is called actively dying usually takes a few days and thats when you see the gaping mouth and the apnea type breathing.
Maria never seemed to go these stages and I'm sure she wasn't left alone for like a week or 2, so how was she able to skip the active dying phase?
I got the immediate feeling that either she staged her death for the camera as the doc crew was running out of time and had to wrap things up, or she committed suicide by taking an OD of her pain and anxiety meds.
Why was her death so different than all the other deaths shown?
Something wasn't right in that one.