I have had those type of skid plates on my GEN1, with the access door (RCI) and just a opening (HeftyWorks) and with either the oil still never came out just in the opening. Most of the time oil got on the top of the skid plate and some techs would clean up the mess and some didn't. I ended up just taking off the skid plate for oil changes, didn't want to mess with that anymore.
My comment was not about hitting/banging it with road obstacles. I will have a skid plate so near impossible. And even if I didn't have the factory skid plate, it would have to be one hell of hit to be that high. My questions was about how much the truck moves around, rattles over certain terrain, jumps, etc that if the lever would ever move and open up.