I was in a bit busy yesterday so I couldn't give you a full a proper response. So here you go...
"Definition of Illegal Contact
Illegal contact occurs when a defensive player makes contact with an eligible receiver more than five yards beyond the line of scrimmage while the quarterback is still in the pocket and the ball has not been thrown. This contact must impede the receiver’s ability to continue their route or progress down the field."
"Definition of Pass Interference
Pass interference happens when a defensive player makes illegal contact with a receiver while the ball is in the air, preventing the receiver from catching the pass. This interference could involve pushing, pulling, or any action that physically disrupts the receiver’s ability to reach or catch the ball. Unlike illegal contact, pass interference can occur {after 1 yard beyond the LOS} and is called once the ball has been thrown.
Pass interference can also be called on the offense if the receiver engages in similar actions to prevent the defender from making a play on the ball, though this is less common."
"Key Differences Between Illegal Contact and Pass Interference:
Type of Contact
Illegal contact usually involves less severe actions, such as pushing, grabbing, or impeding the receiver’s progress down the field while the quarterback is still holding the ball. These infractions occur within the first few seconds of a play as the receiver runs their route.
Pass interference, on the other hand, involves more direct attempts to disrupt the receiver’s ability to catch the ball. This can include physical actions like shoving the receiver, pulling on their jersey, or making contact with them before the ball arrives."
So, with that understanding of the rules, we can look at the "tape"
Initial contact with the defender:
Ball is still in rushes hand. WR is about 2 yards from the LOS. Not illegal contact, nor PI. Most likely chalked up to incidental contact. (Could be seen as OPI, if the ball was thrown to Ferg. down field)
Mid contact point:
the ball has just left rushes hand, can't even really register it on the image due to the velocity on it. But this is the most contacted point of the route. ( Not laid out, as you will see)
End of contact:
Ball is about half way to Lamb, and the contact is about done.
No contact:
Ball is almost to the defender who deflects it up in the air for the INT.
So, as you can clearly see, when the contact is initiated, the ball is still in Rushes hand and within 5 yards of the LOS. Bad break, but no call isn't terrible.
I'm not even going to get into you on the Chase Brown TD... everyone can clearly see he's inbounds. Can't help you take off your goggles.