Zeus, I understand your thinking and that's exactly how I felt regarding the manual work. I felt as the website in question hadn't placed the links, why should they have to pay me to remove them. I found it extremely uncomfortable.
However, with this tool, I feel Google are at least offering some assistance. I just hope they use it for good and not evil!
If submitting to this was seen as some kind of admittal of doing wrong, and then went against you, that would be beyond shady.