I think the issue of generalising without referring to particular images, would have eventually had the same result. People would have asked him if he meant Lisa's images, or they would have asked him to clarify which images in particular he was referring to.
If I posted on AP and said something about particular photos entered into our comps without naming the entrant or entries, it would only be some time before someone asked me to point out which ones, or even post links to the ones they thought I was referring to.
Perhaps it is time for APPA to do away with photographer of the year, and simply stick to winners in their genre? After all being known as the APPA Landscape Photographer of the Year, or the APPA Wedding photographer of the Year, or the APPA advertising/illustrative Photographer of the Year is certainly an accolade to be proud of. And this simple move would remove the issue as being debated at present.