Ram Rear Diff Fluid Change

I just changed out the rear diff fluid on my Ram at 20k miles. Why on earth did Ram not put a drain plug on the rear diff cover? It turned a 10 minute job into an hour job having to take all those bolts out. Still a very easy DIY maintenance item but I may look into an aftermarket cover with a drain in it the next time I change the fluid out.

I do think the first change is the most critical one because there should be less grinding now that the gears are broken in.