Mr. Conspiracy Conjecturer here at your service. How about this? This bit about the hotel is a factoid which they can prove is untrue, or else prove true but still have nothing to do with the OKC bombing, and therefore there must be nothing to the Nichols / Philippine terrorists connection.
This is a proven strategy in the area of ufology. People DO see UFOs. The government doesn't want people blabbering on about what might be the newest toy in the black budget arsenal. Therefore they find one easy case which can be debunked and whose observers can be exposed as nuts or frauds. That way, any other legitimate observations by competent people can likewise be dismissed as just more tinfoil nutburgery.
Competent people are still seeing things that might be Aurora, stealth recon blimps, and Lord knows what else the ghost of Kelly's Lockheed Skunkworks left lying around, but they aren't going to risk the taint and ridicule by saying anything about it.
So, who is "they" in this scenario? And, what would they expect to gain by throwing a tidbit of information into the mix that only muddies the water? I'm afraid I can't make heads or tails of it.
On another note; the things that go bump in the night, odd sightings, etc: I have a reliable second hand account of an unusual UFO here in these piney woods. The person making the claim believed it to be evidence of aliens(ET type) amongst us. I told him more likely our tax dollars hard a work ; )
FGS