What do you propose to do when those limits are exceeded?
The same, I suppose, as you would in any other weather situations that excludes you from landing at your intended destination: Divert to alternate.
Making auto-lands mandatory is not, in my opinion, a viable option. The x-wind limitations is just one example; excessive operational limits on legal destinations and alternates would be another. Besides, if an aircraft is classified as only being "safe" to land automatically, then there's something fundamentally wrong somewhere.
To my knowledge that is not the case of the MD-11, and no incident report has even suggested such a thing either. From what I've learned, all landing accidents and incidents so far has involved some level of pilot error; from incorrect handling to landing outside weather limits. In other words, if you fly it like the book says it's safe. It might have less of a margain for error, but that doesn't distract from the fact it's safe when operated by the book.