"Don't scrub" does not imply "give the data to the next guy".
If I delete a file on my computer without doing a secure delete, I know that the data is still on the disk and can still be recovered. However, I also know that in normal operation of the computer, that data will never show up again. There are no circumstances where I can create a new file and have it get filled out with the contents of the deleted file. There are certainly no circumstances where another user on my computer can do that and get my data.
I would have every expectation that this scrub option works the same way. That it defends against specialized recovery efforts, not random people making new VMs. DO's documentation says nothing to indicate otherwise.
Needs bigger margin or indication of what the 'last' page was. When it's scrolling down my eyes want to read that line and immediately jump to the middle of the last page, as that is where the line is. Make the last page darker or something.
You also have no idea how long-winded an article is and if you need to tldr;
He is just saying that this will be a common occurrence.
Discussions like this should always goes back to first principles - you can't force people to pay a certain wage, no matter how good your intentions.