Who did the research? Do they have a vested interest?
(Harpic, and yes they do.)
Do the droplets etc equate to extra transfer? Not shown.
For starters, it looks to me that lid down or up, lots deposited on underside of lid. Which is precisely the area you will keep touching if you raise or lower the lid. So will this outweigh the spray effect? After normal hand washing, who is going to be walking out more infected?
A flash in the pan perhaps? Pretty pictures, but not good science (very good advertising though!)