Folks, they shouldn't have done what they did, but this sort of crap is done ALL THE TIME by all sorts of dealers, even high-end Merc and BMW shops. If they can do something that saves them 5 minutes of time that won't have any noticeable immediate impact, then they'll generally do it and argue that they are doing the owner a favor by eliminating a pesky maintenance nuisance that serves no purpose.
I own a Honda Pilot and if it has ever been serviced by anyone other than a caring owner, it will, nine times out of ten, have the small splash shield that lies in front of the oil filter housing bent away or cut off all-together.
Not defending their actions, but I wish the car mfgs would design splash shields and access panels with some nod to serviceability. Put a splash shield over an oil filter or drain plug and sooner or later these things invariably get hacked up, put on wrong, have fasteners left off, or be discarded all-together by some "mechanic" in the life of the car. The design makes such hacks inevitable and these cars are being worked on folks who mostly don't give a rip.
- Mark