Struggling to get its workforce vaccinated, the MTA has pulled a $500,000 death benefit for any unvaccinated employees who succumb to COVID, The City has learned. The MTA this week will extend through the end of the year the lump-sum payment and three years of health insurance to the survivors of vaccinated workers who die from the virus, a senior official said. But workers who opt out of getting their shots could relinquish the rights of their loved ones to secure the benefit should they die — unless they had a “valid documented exception” to vaccination, according to a notice...