You are right to disagree, but I have seen no other airline apart from BA with a tested legal agreement in place. Afterall, what VA can afford to hire the relevant solicitors to do this. It might be one thing having an email saying "we dont mind" but that is not a legal agreement in any form and the airline can just say sorry, please shut.
The truth is, most airlines just don't get Virtual Airlines and many of the smaller ones don't object, initially, till it starts affecting their web traffic. The proof is on the internet, time and time and time again we see VA's starting up, BMI, Thomson, Thomas Cook, Easyjet etc etc and time and time and time again we see BMI, Thomson, Thomas Cook, Easyjet etc etc closed by their real counterparts.
If anyone wants to start up a VA based on one real airline and copying their trademarks etc fine. Just don't moan about it when you you get shut down.
Copyright and Trademark are the main issues and companies spend hundreds of thousands of pounds protecting that which is why they shut down Bob and his £20 domain which bears its name or logo's. I say again, having an email saying we don't mind does NOT constitute a legal agreement and in reality, is worthless.