UFOs as in purely unidentified objects? Sure. UFOs as in visitors from outer space? Probably not.
Although, it doesn't say what's being said, or who is saying it. They could be talking about Chavez or some other nut-job who's known to get his crazy on.
Some of the better scientists . . . e.g. Jacque Vallee . . . have asserted that they come from
another dimension . . .
in fact, a spiritual dimension.
. . . which fits with their evident identity as
. . . fallen angels.