Yes but that would make it "unhealthy" for many Americans. So for the health-conscious eater, the real hamburger wins.
The vast, vast, vast majority of people do not have any reason to restrict salt intake.
"Increases likelihood" is bullshit at best (manipulation more typically) without quantifying how much, and how much would it need to be to be remotely significant.
The health-conscious are famous for their hamburger usage.