Corey Coleman was the first WR drafted, 15th overall:
In his first regular season game on September 11, 2016, Coleman recorded two receptions for 69 yards. In Week 2 against the Baltimore Ravens, Coleman made five receptions for 104 receiving yards and two touchdowns. Coleman broke his hand during practice on September 21, and was ruled out 4-6 weeks.
So as much as I like the praise of Thomas, I don't think your supporting information is quite right.