I don't think MET writes business-interruption policies, and I haven't seen MET's name mentioned in regard to the lawsuits you're referring to. If you see anything to the contrary, please let me know.
U.S. property insurers have won a flurry of judicial rulings backing up their rejections of claims for businesses’ lost income during government-ordered shutdowns, dimming policyholders’ hopes of payments to help them rebound.
… In the rulings, the judges sympathize with businesses’ plight, but most so far support insurers’ legal arguments.
… Business-interruption coverage is a subset of property insurance, and with limited exception insurers say they didn’t collect premiums for virus-related claims. Pandemics, they say, violate a cardinal principle of insurance: Large numbers of policyholders pool their risk to finance a few losses in a given year, while policyholders suffer losses simultaneously during a pandemic.
… Many policies specifically exclude claims stemming from viruses. Among challenges for policyholders in policies without the specific exclusions, business-income coverage typically requires “direct physical loss or damage” to have caused the interruption.