Beyonce lip-synced, and so what?

Yesterday instead of Obama's inauguration ceremony took place. Among others, Beyonce sang the national anthem. A spokeswoman for the Marine Corps band said early Tuesday that Beyoncé only pretended to sing, lip-syncing the words to a backing track. What the listeners heard what she had a version recorded at a Marine Corps studio in Washington on Sunday night.

Now my question is it bad that Beyonce did not sing live?