sorry. regardless of whether or not you can change the firmware binaries to do what you want. i'm really not okay with half-assed remote management junk being baked into the nic of my personal laptop that bypasses any firewalls i can configure and is constructed from code i cannot review.
that is exactly the kind of crap that gets exploited.
In addition if he could achieve code execution on the card it wouldn't matter whether the card has this functionality as he could implement it himself if needed.