The product is supposedly 72" long. It looks like if he stretched his legs out straight, his feet would match up with the bottom of the mat pretty evenly, but the top would still barely come to his shoulders.
Either that dude’s 7 feet tall, or the product measurements are a lie. I thought it was a common tactic among companies to show their “big” products being used by particularly short people to make them look larger than they are. Marketing fail.
Trademark is generally industry specific, so you are probably technically correct. That may not be enough.
You can bet every Tupperware lawyer would be opposing that mark. You better have lots of money to spend years in court. Even when you’re in the right, you can still lose.