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To add to what Jiq said, the center rear mount to the oil pan causes the cast aluminum oil pan to break when the skid plate gets hit, and tears the mount out of the oil pan, causing a huge and immediate loss of oil and risking damage to the engine in short order.
What has been found in the past with these designs, which follow the original Yamaha design, is that even a modest hit to the front of the skid plate pushes the entire skid plate backwards enough to tear the rear mount out of the pan. Cast aluminum does not bend, it cracks/shatters when stressed or impacted. So it doesn't take you coming down on a rock right on the rear mount to damage it, (though that will sure do it!), but just hitting the front of the skid plate against a log or stream bank can cause the rear mount to tear out of the oil pan. It's a big, heavy bike and all that mass wants to keep moving.
If you're a street and gravel road rider, no problem and don't worry about it. It will help protect the bottom from gravel and minor impacts fine. And it looks good too. But if you go off road and bash against things, you will want to move to something mounted differently.