A good test of this would be to find an '03 or newer Malibu boat and lean on the free board. Then go lean on a master craft, Nautique, supreme, Moomba, etc.... That's the difference between mat and cloth. Malibu being the sprayed in mat construction and the rest being hand laid glass cloth.
There is no strength in cloth, you're getting bum information from whom ever DMC is. And you can't spray in mat. You can use a chopper gun that shoots in pre-adjusted lengths of fiberglass strands mixed with resin, that in turn is rolled to remove air, but you can't shoot mat.
If you were to lay layer upon layer upon layer of cloth, then yes you'd get a rock solid lay up, like a motorcycle helmet. No one does that in boats, no one. Mat is the strength of the lay up, along with roving and other types of mat, cloth has one purpose in it's life and that's to be applied over the mat so you can work out the air with a squigee or a roller. Cloth won't tear or get tangled like mat will. Other than that it makes for a nice final layer for flo-coating (or if you're building a boat with a wood deck, you'd use deck cloth, a very fine type of cloth that's invisable to the eye once its wetted out) that's what cloth is for. Some builders would even remove the cloth from the mat once the air was removed in an effort to save weight.
I looked on a few of the ski boat web sites. Ski Supreme claims to be 'hand laminated'. Could be, could be stretching it a little too. Here's a picture they posted on their site of a laminator using a squeggie. Ok, looks like they're hand laminated except for the fact that they have chopper guns hanging over head in the shot and those have to be used for something. So maybe they are a 'little bit' hand laminated. Or maybe the term hand laminated doesn't mean what it use to mean. lol