Yeah I guess it depends on the oil drain position in the pan. As @ToomanyVolvos said it wouldn’t work on a Redblock as it would get ripped off if you hit something. For cars like the C30 with a full belly pan and no way to access the drain plug, the most difficult part of an oil change is putting the car on ramps and removing the belly pan...removing the drain plug isn’t a big deal IMHO. I guess there may be some cars where the drain plug area is exposed and pointing rearward, so this type valve could make sense.
@Ex850R you’re probably correct about carmakers trying to save a dime (or 10 cent piece as they call it downunder) but the service guys did have some sway when we were engineering cars...they were pretty bloody hard-headed when it came to things like fuel sender access ports in the floor even though they said there was only a tiny failure rate for fuel pumps and senders, and the internal filter was lifetime LOL!