I own 2 of his weapons. They're not all latex. Infact, only the pummel and the guard are latex, the blade itself is actually covered in fabric. As for a thrust tip, you're right and the maker warns against thrusting with these weapons, however he does offer an upgrade to your custom weapon that includes a thrust tip. You're also right in that should the weapon be damaged you can't repair it by slapping some more duct tape on it. I think that ironliege offers a repair service for his weapons though...Iron liege makes nice looking weapons. If you can afford one, and if you are willing to wait until they get around to you, You can get a nice looking weapon. Many LARPs don't allow them because the thrust tip is almost non existent, and they are really hard. Also they are latex weapons, which means once anything happens to one they are useless, as they are really hard to repair, unlike foam and tape boffer type weapons. I have seen folks spend the hundreds of dollars they charge for them to have them get broken before the end of the first event of use, and I have seen them get turned away because they don't pass a games safety check in, but they are pretty.
I imagine that since it's custom work, if you really wanted a blade covered in duct tape he'd be willing to do that for you...