Googles position on this is the risk of ignoring a DMCA/copywrite report is that they get sued, which is understandable. Even if you can/could countersue a fictitious report, it would be cost prohibitive.

I just wish the law would enable ignoring of continued false claims. Once your name is burnt, you should have a harder time reporting things in future.

I really hope NVidia takes this to court and manages to sue them for a ridiculous amount that sets a precedent.