overemphasize

/ˌoʊvərˈɛmfəsaɪz/
verb
  1. To give too much importance or attention to something; to stress something more than is necessary or reasonable.
    • In her speech, she tried not to overemphasize her own achievements, instead focusing on the team's effort.
    • The report overemphasizes the risks and ignores the potential benefits of the new technology.
    • Teachers often warn students not to overemphasize memorization at the expense of understanding.