I think they are very concerned about their credibility. I think they are very excited about finding a new phenomena but are worried that everyone is getting carred away with this being proof of alien contact. So, to try to dampen the excitement, they claim it is nothing worth getting excited about, although obviously any potentially totally new discovery whether of aliens or a new physical phenomena is something to get excited about. But the problem is, it most likely is neither a new phenomena, nor an alien contact. So, unless and until, they have stronger proof that this is something significant, we can expect to hear lots of "Nothing to see here folks, please move along."