That is true, but if the snipe program is set to always top the last bid ( up to the sniper's max bid) , the sniper will win when he tops your max bid. I don't think a human can bid fast enough to beat a good snipe program.
I used to think sniping was unfair until I realized that the sniper must also have a max bid in mind, and if he is willing to go higher than me, so be it.
I have never used a snipe program, I will place my max bid and live with losing if it happens.