It is a generalized statement. Very few SoCs have internal switch mode controllers. It is going to either be an LDO, or take a fixed operating voltage. Requirements for such will be specified in current, which is more useful than power.

Module level specs would be irrelevant in engineering because there is little incentive to use something like this, the radio isn't even certified. On that note, get your popcorn ready for when they ship to German backers and customs proceeds to trash them.