It's been my observation that the marine industry--- like the fishing industry--- is very conservative, and I don't mean politically. Witness, for example, Bob Smith's continued adherence to his belief that Marvel Mystery Oil is essential to maintain the proper fuel lubricity for the FL120 in spite of the fact that a recent additive study sponsored by the trucking industry determined that MMO actually reduces fuel lubricity.
I'm not trying to discredit Bob--- few if any people on the planet know as much about Lehman marinizations than he does. I'm simply using this as another illustration of Psneeld's point.
Or the resistance of many boaters to the idea that a new anchor design can be as or more effective than the old standbys. Even experts in terms of longevity and experience on the water tend to mistrust newfangled things like rollbar anchors and such. There seems to be an inherent mistrust of "new" in the marine world. Not so much with the manufactureres, but in the users. I'm guilty of it myself in some ways.
It would be interesting to find out why the boating community in general is so resistive to change when it comes to new ideas about everything from anchors to oil.