Once again I 100% believe that BA will never sack a person illegally.
I think you are missing the point. The fact is that BA has the option to terminate a contract due breach. Whether or not they choose to action that option is immaterial.
What the concern is is that BASSA have supplied their membership with a definitive statement that is, potentially, incorrect.
Do you not feel that ALL options, possibilities and outcomes. however unlikely, should be laid before the membership before making such a momentous decision?
Sadly that isn't and never has been the BASSA way.