Betfair making turning winners into losers?

Today Papparrazi was 1.9 or less  to win the 12.55 at Clonmell. One non runner not favourite. Deduction 38.5% from both the odds and your stake. This equals an 81% deduction versus the bookmakers(81% of your potential winnings at odds of .9 plus an additional deduction for commission) and for those collecting lower odds it will result in a winner breaking even or even losing money. Late declaration of non runner by Betfair allowing manipulation of the market as well. Which is the norm.
How long are Betfair going to be allowed to make a deduction from both potential winnings and your stake for non runners.
The only winners here are the layers who are being spoon fed and Betfair who are manipulating the book.
I am seriously reviewing my betting with Betfair because this is wrong.