Hello mate,
Well - it is correct. That is exactly what netdirekt does. I have a client who gets fake abuse reports all the time, and every 12 hours, his IP is reported and null routed. They should seriously (as a proffesional dc would) check with what the client is doing or something rather than just null route straight away.
I guess they just get soo many abuse reports - not enough time to handle everything manually :P
just my 2 cents
regards,
Ryan