I don't have this particular plate, but it looks identical to the one I got from HT. It seems, without a side-by-side comparison, that most of these plates are pretty much the same. I may be wrong.
The one I have has a pretty large access hole for the drain plug. In my opinion, it's way too big. The drain plug winds up not being much higher than the bottom of the plate and if I rode where there were a lot of rocks, I wouldn't be too confident in the protection it offers the drain plug because it seems like a pointed rock could easily reach the drain plug if it happened to get up through that access hole.
I've found that whenever I change my oil, I wind up removing the skid plate, anyway. It takes all of 3-4 minutes to do so. It seems like no matter how I orient the bike, when the flow of oil from the drain plug decreases, it seems to "cling" to the bottom of the case and run across it and then drip down into the plate. So, I always had to try to cram rags or something between the plate and the bottom of the engine case to try to get all the dirty oil out of there. There's not much clearance and it's hard to do.
I really have no need for rock protection so don't know why I put on the metal skidplate anyway: just never liked the looks of that cheesy, worthless plastic plate.
It seems to me the manufacturers would be better off just dispensing with the large drain plug access hole altogether, but there may be reasons for it that others appreciate.
If I rode in more treacherous terrain, I'd probably just weld a cover over the access hole and do away with it altogether.