Interesting. Up here it is pretty much the exact opposite. I don't want to think about how many birds my hunting partners and I would've lost over the years had we not had dogs that could get into the cattails and find downed game (not to mention all the roosters we'd have never seen and shot had the dogs not ventured into those same cattails).
Back to the original intention of this thread, I just think that for someone to come up to the line knowing they are only going to waste the club's resources and everyone's time by watching the birds fall and then walking off is very poor sportsmanship. I have no issue with someone deciding not to run a test, for various reasons, but to demonstrate that level of character, walking off, is pretty lowly in my opinion.