No it does not. And that why you are trying to filch time from the company  

Your pay is based on you working at the base 182.5 shifts per year, or 2190 hours, covering the base's revenue operation.  And, according to the CBA (that you negotiated), a workshift is:

Work Shift: The Pilot’s salary is based upon 182 ½ work shifts per year. A “work shift” is defined
as a minimum of twelve (12) and up to a fourteen (14) hours of duration. A “work shift” does not
include training, meetings and travel to or from training or meetings on an off work day.

So, you, by trying to schedule your training on a normal workshift period is using pay earmarked for your workshift to pay for training.  So, you are substituting a promised (by contract) shift coverage for something the pay wasn't designed to pay for.   Therefore, its like you being sick or on vacation getting paid to go to training. 

When you are sick or on vacation, you aren't working at your base on a workshift, they take money from your vacation or sick time accounts to pay you for not being there.  Here, you are trying to go to training and have them pay you for not being at your shift too.   So, would you rather they pull from your sick or vacation balance to pay you for going to training?   You owe them 182.5 work shifts (revenue generating ours) per year, and you aren't giving them that by trying to schedule your training during a normal work shift. 

You are forcing the company to use additional resources to cover the hole you've created!   That's why it needs the RAD's approval to attend training on your normal work shift, regardless of when it's scheduled!