Can appreciate your dimplomacy
Think that a lot of new, (younger). folk who run into vocalization early, have a pre-concieved notion that it's ok to let it go because it's a display of eagerness to retrieve..the pup has some drive!
Problem I've learned is- some dogs don't "know" they're doing it, particularly those dogs that have been allowed to be vocal for a long, long, time.
The "novelty" of the dogs' eagerness, by the display of vocalization finally wears off, and it's only THEN does it become a "problem" for the owner- like- the first time a flock of wary Blackducks begin circling and get 50yds. away with their wings set, and the dog gets vocal