I just sent my drysuit in for gaskets. Didn't ask them to check it for leaks, as it's been fine. They emailed to say that the fabric had separated and that my suit was in good enough condition to be replaced by a new one under warranty, but lead time is 12 weeks. They've had serious delays from their material supplier, and they're out of stock, as are their dealers across the country. I found one in stock and ordered it, and will get my warranty replacement later.
So, Kokatat still backs their product. As Joe said, they never did cover wear and tear.