Yeah that was the first video that you linked when I was introduced to the workflow. Then I found the second video https://www.youtube.com/watch?v=qYTmFHQDpHY and I felt like it clicked a lot better. I can’t say I have used it yet but have been keeping it in the back of my mind when I see stuff with super high resolution that needs to be simplified. Seems like less work than the old fashioned and painful “delete and start over” method.
Not saying that method doesn’t work but this becomes a welcomed option for some very specific use cases I think.