"Quis custodiet ipsos custodes?"
There are a lot of people pushing false information that might have seriously negative consequences for people that believe it.
Some of them are in business.
The gist of the report seems to be that they don't really have consistent information or studies, there are flaws with the existing research, and while they still think too much salt is bad for you, they have no idea what the limits should be.
The whole paper can be found here, in a somewhat tedious format. I recommend the "Findings and Conclusions" section.
I wonder how many poor black people busted their budgets keeping their diets below that 1,500 mg limit they trusted the government to set for them.