What you have gotten totally wrong is planting this in REPORTING POINTS which is for Rumours & News. Questions would be far better. Now some poor moderator with better things to do on a rainy weekend is going to have to magic this thread elsewhere.
As to your QUESTION, this is not exactly the Transport & General Workers Union with millions of members. BALPA will struggle to achieve 10,000 sometime in the next 20 years, yet still has a significant infrastructure to maintain if it is to have any effect. The choice is in front of you- buy the goods or don't, but bleating about the cost achieves nothing. If you want a half price organisation for half price service, go elsewhere.