I agree, most snowboards include a ton of information that is useful if you take notes and are pretty well schooled on the differences, I.E. sidecut, profile, flex, contact points etc. I would like to see the manufacturers give us all the relative dimensions and measurements so we could make a more informed decision. Unfortunately that is the exact opposite of how they make money.
Snowboards dont last more than a season or two but wakeboards could last a while, and manufacturers need to sell them every year. Its in their interest to lead you in a blind chase, continually telling you that the next board will make you better than the last. I am sure once lakes have rail parks like mountains do, the life expectancy of a board will decrease giving them less reason to keep you un-informed.
Then again, if one company did it and it showed favorable sales results, it would force them all to do it, if they were competing with each other.