No Sir/Maam. I am viewing the product I have assigned the template page I’ve built just like your youtube video demonstrated. The page layout is not paying attention to the layout margins and some things are sticking to the left side of the page and some things are under the sidebar. Very strange. I have disabled all other plugins except woo and the template builder and things are still all wacky.
I’m attaching two screen shots. The first is a product with no page template assigned. It is the default woo layout. Looks good. Not custom but it’s not broken.
The second is the same product with your template plugin page assigned. It is very broken and all over the place.