Google can use the automated system while also cracking down on false copyright claims, using a strikes system for them too, and by not just handing the video revenue to the claim maker just because they make it. They can stash the revenue in a sort of escrow bucket until the copyright claim is actually resolved in either party's favor.
Google cannot categorically ignore copyright claims without opening themselves up to potential legal liability. If you've made a hundred bogus copyright complaints to Google and they cut off your access, and you send in another complaint, they still have to either A) shove it into a DMCA safe-harbor exception, or B) risk knowingly continuing to violate your copyright. Option B is straight up not happening when the risk is that high, not without expensive lawyers reviewing the situation.
There isn't and will never be a "strikes" system for false copyright claims.
they can deny access to content ID, and require manually submitted claims (providing a postal address and requiring hard copy notifications still meets the DMCA requirement's AFAIK)
so while they cant just ignore a claim, they can make it harder to make a claim.
