The folks who get these offers tend to hang out on FT way more than is healthy (I include myself in that category). We are really bad (i.e., unprofitable or barely profitable) customers for just about everyone in travel.
Lots of folks have opined that this Delta boondoggle was actually a good thing for Delta, what with all of the goodwill and loyalty. Hooey, I say. Giving out valuable stuff to FTers for free is the path to financial ruin.