I agree it wouldn't hurt to keep the door open but I also don't believe he was being condescending. The platform a company uses is indicative of a whole lot.

I agree it wouldn't hurt to keep the door open but I also don't believe he was being condescending. The platform a company uses is indicative of a whole lot. In this case, that it's a Windows shop. No one said there's anything wrong with that but that's not what he wants.