Actually Abbey, this is what it says about dismissals.
Any employees dismissed for dispute related reasons, and whose case has not been heard by an Employment Tribunal, may elect to have their case heard through the ACAS arbitration scheme. The result will be binding on both parties. ACAS will also carry out a review of other dispute related disciplinary cases.
So as I read it they are going to look at all cases but those that have not yet gone to an Employment Tribunal can have the actual case heard by ACAS and that will have a binding result. Many have been sacked already and have not yet taken their case to tribunal so this will now be done by ACAS, but it finishes by saying ACAS will also carry out a review of other dispute related disciplinary cases.
But I totally agree that DH aka Walter Mity is putting a spin on it all!!