Broken Biscuits
Someone has already mentioned the metal security fence - this would almost certainly be a problem, running as it does (did?) parallel to the runway, just right to give a nice reflection out onto the approach path to runway 20. But its new location is even more of a problem for the opposite approach to runway 02.
Pardon me for asking a dumb question but - would someone who was planning navaids, not have asked someone who was building the infrastructure about fencing? At some point, they would both have been looking at plans that had dotted lines to represent fences.