hello: It seems to me that the uniqueness of corn-bread would not meet the criteria of the Rashba, as a consumer would not see it as an indication of the corn-bread’s fleishig status, but rather of the uniqueness of corn-bread.
For consumers you are right. That would be in line with the Maharit brought down in the Pischei Tshuva. But for households it would be fine if everyone knows that the homemade corn-bread is fleishigs.
I also saw somewhere that we’re not choshesh for guests coming over the house.