You shouldn't try and dictate what someone else 'has' to do. It isn't an incentive to participate. It is also rude.

An excellent starting point, which you undoubtedly won't agree with, it Appendix A of Cronin's biography of Napoleon. He covers the memoirs of Claire de Remusat, Bourrienne, Talleyrand, Barras, Marmong, Laure Permon (Duchesse de Abrantes), and Chaptal. Cronin also describes the ghost-writer for Bourrienne including the factual Bourrienne et ses erreurs by Comte Boulay de La Meurthe who headed a group to conduct the study.

The first volume is here:

https://books.google.com/books?id=4dsehY9Nx3UC&printsec=frontcover&dq=bourrienne+et+ses+erreurs&hl=en&sa=X&ved=2ahUKEwiz18GpyMPkAhWiiOAKHfXGBVYQ6wEwAXoECAIQAQ#v=onepage&q=bourrienne%20et%20ses%20erreurs&f=false

Volume II is here:

https://books.google.com/books?id=nrBCAAAAYAAJ&printsec=frontcover&dq=bourrienne+et+ses+erreurs&hl=en&sa=X&ved=2ahUKEwiz18GpyMPkAhWiiOAKHfXGBVYQuwUwA3oECAQQBA#v=onepage&q=bourrienne%20et%20ses%20erreurs&f=false

Finally, if you don't agree, then please take the time and put in the effort to prove me wrong. If not, then your 'point' is moot.