Irrespective of the proximity of the 'john', I think people who love Elvis should take some comfort from the fact that he died in his bathroom.
Since he chose to fill his home 24/7 with friends and various staff and never slept alone, that upstairs bathroom represented the one room in the whole world which afforded him real peace and privacy.
We can talk about the indignity of the scene when he was discovered, but there's no other room which would have served as a better venue for his terminal moment. If we assume that the cause and nature of his death was inevitable, surely he would have hated an audience for that and this maybe turned out for the best.
And he was at home.
Also, there's little point or comfort to be gained from speculating that he would have survived if Ginger had been awake or Linda was with him at the time etc. It sounds like the damage was done, so we should be grateful that he had a moment's peace after a whirlwind of a life.