Not to belabor the point, but re: "...Burning bodies should only be done as a punishment against evil people..."
On Yom Kippur we read that G-d has determined for the coming year "Who by fire...[will perish in the coming year]".
So...if The Holy One has so decreed who is to perish by fire in the coming year, how is it that the unlucky ones so decreed are commiting sin?
I realize that this is not necessarily the same as willful cremation of the deceased, but nevertheless my question is pertinent.
Answers, anyone?