Carlton,
Yeah, I wouldn’t think that plate could support the weight of the Xterra either. For that purpose I would be looking at Skidrow or others designs like I mentioned.
However, considering the cost/benefit of this plate and its performance so far on my truck I would recommend it and give Nissan some credit for engineering a part that does offer some protection.
BTW my t-case plate has a few dings and a slight deflection but no collapse. I will try to get a photo on-line likely not until next week) and maybe the video of me impacting the plate and you can see for yourself