They can do both, hire more lawyers to review and fire the lawyer who presided over bullshit claims (because I'm sure this isn't the only one). firing a lawyer makes news in the legal world and makes other lawyers more risk-averse.
Google should also be sued for violating its DMCA obligations, specifically
Section 512(g)(2)(c) of the DMCA requires that providers “[replace] the removed material and [cease] disabling access to it not less than 10, nor more than 14, business days following receipt of the counter notice”. Google’s failure to adhere to the deadlines specified by the DMCA raises questions regarding its approach toward handling DMCA counter-notices.
Google should also be sued for violating its DMCA obligations, specifically
Section 512(g)(2)(c) of the DMCA requires that providers “[replace] the removed material and [cease] disabling access to it not less than 10, nor more than 14, business days following receipt of the counter notice”. Google’s failure to adhere to the deadlines specified by the DMCA raises questions regarding its approach toward handling DMCA counter-notices.