My first contact with the notion of adding the salt later in the dough kneading process came from the bread side of dough making where an autolyse was used, especially a classic autolyse in which only flour and water (and occasionally IDY or a preferment) are used during the autolyse.
Many pizza operators mix the salt in with the water, along with sugar, honey, etc., in most cases. Some simply add the salt to the flour, possibly as part of a pre-mix. So, unless you plan to use a classic autolyse, either of these approaches should work well.
Peter