The story of how man achieved powered flight isn't just about the men who were successful. Like any great endeavour, there were many twists and turns in the path taken before the correct way forward was found. The experiences of those who failed were a contribution to the knowledge of those who ultimately succeeded.
Percy Pilcher deserves his place in history as a courageous pioneer, and maybe a little more respect from us, the aviators of today, than shown above.
Personally I would have liked the program to have told us more about the man himself and his life and work rather than concentrating on rebuilding his machine, but it still made a good yarn.