Hydrofoils are generally higher drag at low speed, they only make sense when you want to go faster than displacement speed. That doesn't make sense for most cargo, anything time sensitive is going by air.
There are already lots of hydrofoil passenger ferries where passengers pay a lot less than a plane ticket but more than a slow monohull ferry ticket to get to a destination a bit more quickly.
On land, you might send something across the country at 60 mph on a truck for $0.4 per ton if you don't want to wait for rail or pay for air, but as far as I know, no such middle ground exists for ocean freight.
There are certainly customers who can't afford and don't need next-day air, but would pay more to get components in perhaps 5 days (60 mph hydrofoil, 6000 mile Pacific crossing, plus a day to load/unload) instead of 5-8 weeks, if there was a business that catered to that.