(nearly) everyone works inside the constraints of the agency. They dictate what it takes to get 'qualified'. The major problem with agencies' 'view' is the length of time in which a person can become proficient with basic OW skills.
So I think it ridiculous to pin blame on an instructor for adhering to the rules.
And ridiculous to think 'customers' will know the difference in training.
The agencies have set the bar too low.
Customers don't know the difference but motivated divers will become good divers and others won't regardless of what class they ended up in.
As long as the very basics are taught (and all do this to some degree) then the motivated (interested) will become experienced divers and the others won't...regardless of the class. Six months out of OW your skill is determined by you and not by your OW training.
It's a hobby...a 4 year degree is not required.