I don't see any mention of "legal" in FastEagle's post. His info looks pretty solid to me. Basically, the ID tag lists what it left the factory with and is the minimum you should run. Feel free to upgrade from there. That's also pretty much what you say in your response. It all seems to be in agreement but I don't understand what you are calling, "misleading".
Were way off on another tangent here ....
I'm not answering for Keith but I was around years ago when FS started his crusade on going strictly by the tire placard even tho the trailer mfg choose a tire type/size/load range that had a severe history of tire delam issues/low service mileage/etc.
His postings such as this thread where he says...:
**That's your starting point because that's the minimum allowable load capacity for any replacements.**** is stated as the only way we or any one may choose a replacement tire.
He doesn't use the term legal now but did in the past ..... but to a newb reading that type opinion leaves that impression that the placard some how trumps all legal requirements or those chosen by the trailer owner...... or a tire dealer....or even a tire mfg that gives their recommendation for a different tire.
One of our tire engineer member some time back called his opinions on tire replacement as being legalistic in nature .