What they appear to have done is, instead of threading the rope end through each end-link, the end-link of one chain was poked through the end link of the other then they threaded the rope through the first link.
I cannot imagine why they would have done this. They actually removed some redundancy. In the unlikely event of the threaded link breaking, their rope just flies out. Unlikely, but it looks like hardware store chain so who knows how strong it is.
Weird, but I've seen lots of times when people have destroyed the redundancy of rap anchors. Most common is where the two independent anchors terminate in shackles and someone decides that it would be good to clip one shackle through the other so they only have to thread one.
I've often placed the Fixe chain anchors which have a single welded ring for threading. In this case it's a heavy duty welded ring from a reputable manufacturer and I'm happy with that. The failure point with these anchors would be a bolt pulling in poor rock or the nut on a bolt coming off.
Edit : I've also seen where people have added an extra krab to give redundancy to these Fixe anchors. I think that welded ring is way over-engineered but if people aren't happy with it then that's fine.