As a hunter first, I would say that if my birds were consistently falling at 150 yards I have done something horribly wrong. Even 1 a day is an indicator of poor shot selection. True I have sailed snow geese as well as many other birds on rare occasion over the 62 years I have hunted. To add to my hunter qualifications I have hunted over 120 days per year for the past 6 years. So I feel confident that my experience afield is valid.
I see nothing wrong with the ability to have an OCCASIONAL 150 yard mark in a hunt test but to make that distance the new standard is beyond common sense given the stated mission of HUNT tests. In a real hunting situation birds fall in all sorts of placements so that there is no way to decide what is good and bad placement. So if you really want to have a test that is common in the marsh give every dog a swimming cripple that dives when the dog gets close. That will separate the wheat from the chaff in short time if that is the true goal of a master test.