Deflected Throw-In Goes In

[Freddy]

Older threads went back and forth on this, and I'd like to renew the question so as to settle on a firm, rules-based judgment on this situation:

Throw-in thrown toward throw-in team's basket deflects off a defender standing outside the three-point arc and goes through the basket. Result is two points due to the fact that the "throw" did not originate "from the field" as requisite in 5-2-1. True or False?

Previous threads from a while ago wavered back and forth until seemingly settling on the "two points" result.

Casebook does not seem to settle the question since all sitches there deal with passes and throws from a player inbounds.

Any rules-based insights you can share with me?