The team that a broadcaster played for doesn't matter. Several players wound up broadcasting for a rival team: Tom Seaver was excellent in the Yankee booth; Don Drysdale did the Angels for several years; Mark Jackson had a good run in the Nets' TV booth.
Meola should be judged solely on whether he is a good analyst, not on what team he played for. And, based on the only game that I saw with him in the booth, I didn't think he did a good job.