Is Induced Coma Advisable For A Person Suffering With Glioblastoma?

My father was diagnosed with glioblastoma almost 2 and a half years ago. We certainly feel blessed to have this amount of time with him but we are at the end....I am told by Hospice. 4-days ago he was eating, feeding himself, sleeping perhaps 12-14 hours a day. He started having headaches and the increased his steroid dose from 2 mg to 8 mg. He was better for maybe a day and became irritated and had extreme anxiety, walked the house at night, moaning, couldn t sleep and couldn t tell us what was wrong. Hospice felt he was in pain so they put him into a morphine coma and just stopped the steroids. Is this normal? Why wouldn t they increase the steroids to try and manage the headache/swelling of the brain, perhaps give him morphine for pain instead of putting him in a coma? This just happened this morning and I am now told he wont wake up. Please help me understand this sudden change as everything I read of the ending days of glioblastoma, it seems my father was weeks, perhaps still months away.