Fortunately, This is not true.
This is a simulated asteroid impact hosted by NASA with astronautics team in preparation of data if an asteroid one way will impact Earth. Each year, this simulated asteroid collision takes place and information is recorded. Tools are available to view and calculate everything that involves in asteroid impact scenario, including early detection.
What is more interesting to add here for you, the reader is that this tabletop exercise is fairly new and did not start until a few years ago. My opinion is since NASA scientists have been keeping a close eye on 99942 Apophis, The asteroid that will have a near miss of Earth in 2029 and again in 2036, Will actually make impact with Earth and Many agencies are scrambling to be prepared “if” this event actually happened to hit Earth which, I strongly believe, NASA is lying to us to prevent a mass panic. The DART program further raises concern for a planetary defense.
Why start these exercises now instead of 10 years ago? Why is this simulation not in any news, both mainstream and independent? Why is some key data missing? Planetary defense will soon be in the news starting next year but be aware that they been training for this right underneath our eyes. The more you know about NASA.