Not an Austen purist ( and that is the defence of anyone who marmelises something). But the short portion of this work that Jane Austen wrote was short, very much a first draft and, frankly, not very good. It is unclear who the heroine or hero are, or how the action would develop.
Anyone with half a brain could use it as a vague idea for any kind of regency fantasy they chose to write.
When Andrew Davis started he was very good. His adaptation of Mrs Gaskell's Wives and Daughters is brilliant and true to the book and the those of the book and I re-watch it regularly.
Sadly, starting with Pride and Prejudice, which I did not like, I much preferred the Fay Weldon version, which preceeded it, his work has been downhill all the way.