Why is it NOT advised to enroll in and complete a law enforcement training program that is either not certified or does not meet POST certification standards?

POST certification is simply not needed any longer, although many departments still require applicants to be familiar with its provisions.
POST certification is a strategy to offset the cost of training new police recruits.
It makes no difference to a police officer’s career if he or she meets POST certification standards or not.
POST certification is required of candidates before they can be hired into a local police department.