I was at a small station. What happens after awhile is that their credibility hits absolutely zero and to the point where we as a group refused to even speak to them. CR is simply another company tool that is used to make certain that their power remains absolute and unchallenged.
This is FedEx 101. The situation at Ground sounds very similar to Express. The power structure is absolute, and should you dare challenge it, you are an immediate target.
The classic Express scenario is an on the job injury. First, there is incredible pressure not to report them, because you will invariably be blamed and get dinged with a Preventable Injury. No manager wants a Preventable Injury on their record, so the incentive is there to keep injuries down by inaccurately reporting their cause. Blame the employee, because FedEx is always "safe". So, many people work hurt and often their condition gets worse. Of course, FedEx says to always report injuries immediately, but it doesn't take long to figure out the way the system works. If you report, both management and the HR rep now have you in the system, and the guns are out. Better be back ASAP, and at 100%.
If you go out on injury and cannot work, the fun really begins, especially if it's something serious, because you've got that 90 days hanging over your head. I've seen many people return to work at Day 91 so groggy with pain medications or just plain pain, that they shouldn't be anywhere near work. Many conditions take far longer to heal. Most companies, by the way, have 180 days, especially union companies. I remember a manager who went out for shoulder surgery. She was so stoned on meds that she couldn't even function. She just sat at her desk and cried, and attempted to do some administrative work. It took her another month to heal and actually function.
Once you're past 90 days, or are on some sort of state industrial disability, the red laser pointer is directly between your eyes. I don't care if you're a Golden Falcon winning, All-Star employee who has been perfect....you're on the radar.
It's all about the money, and I've witnessed managers doing all sorts of unethical crap to make an injury appear to not be the fault of FedEx or to claim that it was due to outside activities. I would never tell anyone at work if you're in a soccer league, play softball, or lift weights. They'll use anything and everything to blame you, even if a CTV ran you over in the yard. That's how this company rolls.