Sure the methods haven't changed much in general. In fact, I'm not sure the methods have been able to keep up with the reality that the the size of the trucks, where the grab rails have been curiously placed, the weight and size limits of the parcels, what is considered a small and therefore put in bags, etc. are not nearly the same as a generation ago.
Ten years ago a good share of drivers looked forward to the start of the pickup line. It marked that the end of the day was in sight and he or she had a good idea what to expect. Now with the relentless emphasis on maximizing capacity, the methods require all over-70's loaded in back and on floor, all hazardous on floor and segregated, blocked and braced on all four sides no higher than waist level, all high value have to be verified and signed by an auditor upon returning and air pkgs have to be grouped together also. There are runs here where the back of the truck is filled with 200 pkgs spread among those 4 classifications 5 stops into a metro with 25 hits to go and sometimes more. There will most likely be double-handling required multiple times in order to try and accomodate for the rest, and in addition the driver may be directed to cover another pickup. That pickup may consist of several over-70 air pkgs that cannot be stacked on top of haz-mats already allocated for the space on the floor.
The driver has few choices, none of which are appealing. If the driver balks at loading the pkgs into the car, he or she likely has a mildly disgruntled to outright peeved customer giving the finger with one hand while dialing 1-800-FEDEX with the other and a phone call and subsequent "review" with the management team who happen to see the car upon returning to the building minus the air and haz-mats and bulk pieces while answering to the typical "You had plenty of room" line.
Will the driver still have his or her job after the unpleasant exchange? Sure. Will they feel like sticking it out that extra few years to get a better retirement knowing that following the methods as well as they could resulted in all parties dissatisfied?
Time will tell. Following the methods is good risk-averse behavior, but it by no means guarantees that it's practice will endear one to the management team or even the rank-and-file during crunch time. A driver calling in for help to lift over-70's certainly is practicing safe work methods, but the reality is that he or she is viewed as a pain in the rear at an inconvenient time for all. But if the driver attempts to handle it his or herself and gets hurt in the process...
There are safeguards and methods, but that doesn't mean a driver escapes the wrath by any means by executing them fully.