I definitely agree it's overrated:
Michael Thomas ran 4.57
Deandre Hopkins ran 4.57
Keenan Allen ran 4.71
Mike Evans ran 4.53
Drake London was a 4.5 range guy
Davante Adams ran 4.56
Antonio Brown ran 4.57
Cooper Kupp ran 4.62
Ceedee Lamb ran 4.50
Puka Nacua ran 4.57
The list goes on and on for top tier WR's that ran 4.5 or slower.