Personally, in general, I don't mind the "let them play" mindset when it comes to that. Hand fighting on both sides, small grabs and such (like what Lamar Jackson did early in the game that Matt Millen whined about), I'm with them calling it loose. Receivers get away with a ton. I've lost count how many times I've seen long pass plays where the defender appears to have good position, only to have the receiver reach out and pull him past him, simultaneously moving the defender out of position and using him to get the leverage to jump for the catch. It's basically never called.
That being said, there is still stuff that should be called that isn't. Grabbing that doesn't seriously impede is fine, but hanging all over isn't. Also, pinning a receivers arms to his body should never be allowed. The defender has a right to the ball, true, but pinning his arms so he can't do anything and using the leverage to also intercept the ball shouldn't be allowed (perfect example, the INT at the end of regulation in the Colorado game. Should have been DPI, plain and simple).
