overhyping

/ˌoʊvərˈhaɪpɪŋ/
verb
  1. Present participle of overhype: the act of promoting or praising something too much.
    • The company is overhyping its new software, but users report many bugs.
    • Overhyping a product can lead to customer disappointment.
    • Stop overhyping the event; it's just a small local fair.