I'm not totally familiar with California's lemon law, but if it is like most other states it only applies to safety items or items essential to the purpose of the product. For instance, a vehicle is expected to be able to transport you under it's own power. So my question is, would a gasket seepage issue qualify under the law? If it became bad enough to compromise safety or useability I would say definitely yes. But what if it just seeps/leaks?

Regardless, I would suggest that anyone with this issue fully document it in writing with the MoCo, copy to state and local consumer protection agencies. While we would all hope they eventually get off their duff and come up with a permanent fix, there's no guarantee they actually will. It may very well come down to lawsuits, and having everything fully documented can only help your cause.
Jerry