That was said early in the Disneyland discussion a few days ago, when the only image we saw of the animatronic was under warehouse lighting. And from a quote from
@Disney Irish where he was pretending to speak with authority that Disneyland was making conscious decisions to cast older looking actresses as Tiana in the park at the Disneyland restaurant. That now appears to not be the case, and the animatronic has since been shown to look better under better lighting conditions.
What I have been reminded of by this hilarity is that one must take anything Mr. Irish says, even when said repeatedly with a tone of authority, with a grain of salt.
He was simply speculating that Tiana would be noticeably aged for her new role in the ride and appearances in the parks.