I suppose it is. It seems, though, that the reason for the rule is so that there's a limit on the number of local Sunday telecasts that ESPN can steal from each team, not because they want a lot of variety on Sunday nights.
Maybe they're saving that number for Bobby Valentine's return. I'm afraid, though, that the Mets have decided to retire number 2 in Derek Jeter's honor.
ESPN is limited to televising each team five times per season on a Sunday night. They didn't want this game to count against their Yankee or Red Sock totals, so they allowed YES and NESN to broadcast it locally.