Of course it CAN be done. Anything can be done through the magic of software. I suppose what he meant to say was that it just wasn't practical because the time & effort of implementing that functionality would be much better spent somewhere else.
If changing this required, for instance, that he write a new protocol layer that can facilitate communication between processes or a new command transport to shuttle commands to the server from a place it doesn't usually come from, hemight not be amicable to investing the time. Understandably.
I know, I'm just stating the obvious. Sometimes I just like to type to hear myself talk.