As boffin points out, the force would be delivered by helo, and as the article states: "...the intent is for the ship to be able to deliver ashore by air an assault force up to two companies strong..."
So we are not talking about landing craft. The problem seems to be that the word "amphibious" seem to conjure up to many a landing craft opening the bow ramp on the beach at Omaha beach...but things have evolved a bit in the last 70 years....
The Iwo Jima class "Amphibious Assault Ship" was really a helo carrier with no well deck, just like the more recent USS America. Glad to see they are going back to the well deck for later LHA's. This is more like the Commando concept on HERMES (or Ocean).