This reactivation [of the cell cycle] is a process called apoptosis.
Doesn't mean the point of the article is wrong, but these two points (and some others) is wrong.
You are correct - apoptosis is the natural programmed death of a cell. Cells should copy themselves about 2 dozen times and then be replaced. If they aren’t the opposite happens - metastasis. Think of copyping a picture, then copying that copy and repeating it a few times. Thing get blurry. In a not very different way, that’s what happens with cells.
My own research and personal experience - ortho-iodine supplementation works wonders!