If you're comparing the healthiness of a premade vegan burger patty, you need to compare it to a premade (or equivalent homemmade) beef patty. You can't take salt out of the beef patty comparison and say "look it's better"
Edit: But you can compare it to actual products on shelves. The first frozen burger brand I can think of that would be a good comparison is frozen Bubba burger. If we compare the sodium content, Beyond patty is 3-4x higher in sodium. Beef wins! :) Although Beyond has half the fat.
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.