$25 million in damages because your child was snubbed by a character at a theme park? I think that it's highly plausible that this was a misunderstanding and not done intentionally.
The size of the ask is almost certainly for publicity (and it worked obviously)
And sure there’s a chance that this was an ‘honest mistake’
But there is really nothing about contemporary race/et al relations that would support your notion of ‘highly plausible’