"[N]umerous COBRA class action cases have challenged COBRA notices based on relatively minor discrepancies with the DOL regulations. [This] decision is significant because the court stepped back and, effectively, said, 'Even if these notices are confusing or missed some technical rules, how exactly did that harm the plaintiff class?' " [Carter v. Southwest Airlines Co. Bd. of Trustees, No. 20-1381 (M.D. Fla. Dec. 14, 2020)]