I highly doubt a Florida Blue customer service rep would know anything about a marketing campaign the company has had in the past with Disney. Even the company newsroom doesn't always announce it.
erionm is correct in that it has only been for limited times during Food & Wine. Sometimes the lounge is limited to Annual Passholders. So it depends on when you are going.
And to be honest I've gone in for AP and Florida Blue and other than a seat in A/C it was nothing special. Cups of Water or Mint Tea .... neither visit had snacks, FL Blue craft was very time limited so they were not offering when we went and AP did a special photopass.