But the following sentence in 451(f) says:

For purposes of the preceding sentence, payments received under the Agricultural Act of 1949, as amended, or title II of the Disaster Assistance Act of 1988, as a result of (1) destruction or damage to crops caused by drought, flood, or any other natural disaster, or (2) the inability to plant crops because of such a natural disaster shall be treated as insurance proceeds received as a result of destruction or damage to crops. 

So does that limit it to only those government programs?  Did the neighbor's insurance company pay this claim?