No dismissals, but maybe lock outs
I'm not expecting dismissals within the 12-week protection period as I don't see BA wanting to be accused of acting illegally. However, I won't be too surprised if cabin crew get locked out.
Suppose people strike for four days and then call in, only to be told to stay away - and they won't get paid. Why? Because although the strike may be over, the dispute isn't, so Unite could call further strikes. Striking cabin crew could find themselves receiving only £30 per day from Unite for some time.
Once the dispute is settled, Unite and strikers would be both poorer and wiser.