Yeah, I thought it said Emergency Only - recall someone posting that up the other day. And it does say not to use other parts of the vehicle (like the chassis rail) for obvious reason. This doesn't account for a good quality tow bar which is attached to the chassis on at least 6 different points.
Whilst we'll never stop genuine accidents even if every man and his dog practiced safe recovery procedures, the best method (currently for the average buyer) is to use a good quality tow receiver hitch and rated shackle (4.5T) like this one:
Attachment 28126
Even better is to have two recovery points on the front and rear and use a bridle/equaliser if the budget allows for it. I am a believer that recovery gear (of any description) is not stuff you "cheap" out on - how cheap snatch straps, winches, shackles, bridles, chains, etc, etc, could possibly make you feel safe, I have no idea. You reckon the blokes who do abseiling up and down cliffs sit around on Sunday afternoon after a 140m vertical climb and boast about how they picked up some cheap ropes, harnesses, and gates from eBay just recently?