You don't want to run a hydrofoil into anything. They also increase your draft which decreases where you can go. They are also less efficient until they are on a plane. The wind doesn't always blow hard enough to take advantage of them. They are prone to catching kelp and other junk.
If you want a cruising hydrofoiling boat, just set up an ultralight backpacking dry-bag, throw it at the base of the mast of your hydrofoiling race boat, and go cruising! It's not gonna be luxurious, but you probably won't die. To each their own. I prefer my slow and comfortable boat.