It's true that sugar is responsible for much disease, however "the primary cause of hypertension"? I really don't think so, unless indirectly, as a consequence of diabetes and obesity.

In any case, there is no controversy regarding the role of salt in hypertension. The evidence has been accumulating for a very long time, with numerous studies and meta-analyses. The physiological mechanism by which sodium and potassium control blood pressure is also uncontroversial.

And anyway, just because sugar is bad for you doesn't mean salt is good for you- in the same way that smoking is not good for you just because sugar is bad.