adj. - of or resembling a spectacle; impressive, grand, sensational or dramatic;sensational in appearance or thrilling in effect;having a quality that thrusts itself into attention
n. - an elaborate display; a dramatic and/or lavishly produced performance
Even in the dictionary, they used "they put on a Christmas spectacular" as an example. That's what Christmas has become, a spectacle. People producing lavish decorations, elaborate gifts, sensational parties, putting their homes on display, putting themselves on performance mode, trying to be impressive, trying to get attention.
If you want impressive, how about a teenage girl, pregnant out of wedlock and she decides to keep the baby. And her fiance, who isn't the father, decides to stick around, marry her and raise the child.
If you want sensational, that illegitimate child was the legitimate Son of God.
If you want a thrilling party, invite a multitude of angels to appear in the sky above and declare praise to God.
If you want prominent, how about one single brilliant star placed in the sky as a beacon declaring to the world that the greatest king on earth was just born.
If you want lavish, how about baby gifts that included gold, frankincense, and myrrh, standard gifts to honor a king or deity in the ancient world.
If you want dramatic, how about a jealous king who ordered nationwide infanticide, that all baby boys under the age of 2 be murdered to eliminate that threat of a new king.
The first Christmas was indeed spectacular all on it's own. It's miraculous story has inspired songs, performances, displays, lights, gifts, celebrations, yet today somehow that stripped down story fails to get the attention.