All of the salts have changed since that study, even if one believed the bogus scoring system.
Here’s a copy of just one comment I made about it in 2006:
The S-15 also had a contrived list of "good attributes" of a salt mix designed to make theirs best. Some of the things I wouldn't have wanted or wouldn't care about. One criteria, for example, is
"Enhanced amounts of calcium and strontium"
So pure natural seawater would not have scored 100%.
then another category was:
"Contains strontium similar to NSW. "
Apparently, their mix got points for this and enhanced strontium. Not sure how that worked out.