Active pilot monitoring is a key focus area for the company right now. It may be because overall experience levels in the cockpit are comparatively low. In my experience as a line CP and trainer in the company, inexperienced co-pilots are generally too scared to speak up and question the CP's flying and/or too overwhelmed by the demands of SOP compliance and the very busy operation to contribute fully to the operation.
Cocky FOs are rare on the line. They soon learn to be more tactful.