I had one on my Subaru WRX for 10 plus YEARS and no failures of any kind. The idea of more moving parts, more problems is silly coming from people that mod the crap out of their Jeeps. By the way, your oil lubricates the ball valve and there small lever has to be pushed up and then turned to open.
I liked mine because I could drain the oil while the engine was super hot. As for the time is money thing, I do not have mechanics change my oil because I am competent enough to do it myself and I am very particular about what oil and filter I use. When the oil is hot it drains really fast. Cool oil drains slow. Out of curiosity, I took it off once to see if any additional oil drained out and got hardly any. I did not even soak a paper towel there was so little.
Okay, back to my Subaru. I never had a problem with it scraping anything- snow, rocks, sticks or anything else- because I had an engine skid plate. Before you say anything, the Subaru skid plate was plastic and had a rubber flap to get to the drain plug and filter. My Subaru also had less than 5 inches of ground clearance so it was much closer to the ground than a Jeep.
If you are worried that it will get ripped off during your off-road adventures, I can assure you that your oil drain plug and probably most of your pan would be taken just as easily.