Would it help to operate several types of ship-to-shore craft for different sea states and shores?
Short answerYes. Different craft trade speed for beach and sea-state flexibility, and conventional landing craft are easier to recover when they ground.
NotesThe answer favours having different connector types rather than assuming a hovercraft can solve every landing problem. LCACs are fast but selective about beach geometry, while conventional landing craft cope with a wider range of shores and can be physically recovered when stranded. Beach slope, sea state, payload, and maintainability all change which craft is best for a particular landing. The Falklands beach armoured recovery vehicle illustrates the unglamorous recovery equipment needed to keep the surface flow moving.