Ref's were making over $8K per game last year, plus travel expenses and benefits. That's plenty of money for a ref imo. If they can't create their own pension on a salary of $140K+ per year, then they need a new financial advisor, not a new contract.
Also, they are asking for a 35% raise in pay. That's a little ridiculous in a labor negotiation. I could understand 3% or even 5% to compensate for inflation and cost of living increases, but 35% is just greedy.