You can make an awesome burger pattie with beef, onion, garlic, a touch of finely chopped jalapeno and some herbs and spices etc. You don't need to add salt.
The comparison here is shop-bought burgers or those you would buy in a burger restaurant, which WILL have salt and likely more than a Beyond burger.
I have no opinion about the economics of the brand itself; as a vegetarian I've always thought they were over-priced, and also that it was a shame I don't have a huge range of alternatives, as I actually like spicy bean burgers and can't find them any more*. In fact, because of the limited alternatives in my local markets, I got a kit for making my own burgers from dehydrated soy mince and/or mashed kidney beans.
* I don't know how much of this is "bean burgers are no longer popular" vs. "I moved country and Berlin has never heard of them"; for Quorn I do at least know it's the latter.
Do you have a link or name for this? I also prefer black bean or lentil burgers, but I've been making them by hand really.
There's probably also a cheaper source for the form and squasher if that's all you need, but it came with them so I didn't look for that separately.
People who buy burgers or eat out are likely to get less healthy burgers, if you look at highest selling supermarket burgers, both meat and vegan options are ALL high in salt for example.
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.
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.