@Nick.
The LAA awards committee have confirmed that they believed it to have been solo, and one of the people present has described what she did as a 'deception'. His choice of words.
Explain why Ewald had to get out of the Stearman before landing in front of a big crowd in Baragwanath if dual was not an issue?
It was sold to the world before, during and after as solo. It wasn't. Any attempt to re-write history will fail.