Hey guys,
I'm jumping in on this topic kinda late but thought I would throw in my two bits..
I have an ACD plate on my 2012 Tenere and it works great! There is only 4 bolts to take it off and you are right it's not the big a deal. One thing to be aware of is the two rear bolts are what connects the center stand to the bike. By it's design with the bike on the center stand you can sneak these bolts , drop the skid plate but then I always slide the bolts back in to keep things from falling down. Also on the right you must be careful not to release the kickstand spring.
A friend on this site took the ACD skid plate and modified it for oil and filter changes while bolted to the bike. Using a metal hole saw he cut the face of the oil filter cover leaving approx a 1/4" lip. This hole is now large enough to reach in with a oil filter tool (looks like a big socket) and remove the filter. He fabed up an aluminium disc, fit it over the 1/4 lip, drilled four holes through the disc and lip, tapped the lip and bolted it on. Two holes drilled into the bottom of the pan below the drain bolts and you are in business. It is still a messy job as the oil does drool all over the inside of the pan but if you "needed" to do an oil change on the trail it might save some time.