Abby Grosslein, a Vista member in New Orleans, said she thought it was strange that the health benefits provided by a federal agency did not meet the standards of a law adopted more than three and a half years ago. “It would be nice if the government waived the penalty because we are a federally funded program,” said Ms. Grosslein, 24, who is completing her third year of service with AmeriCorps. “It’s as if the right hand does not know what the left hand is doing.”