This kind of information is used in Wales but the Westminster lot live on another planet. TUC does use this type of research when invited to give evidence to Westminster committees but it is only taken on board if it fits with the direction the Government wants to go in anyway.
I've been involved for the last 18 months in compiling huge amounts of evidence and case studies that demonstrate the benefit of workplace equality reps and making the case for them to have statutory rights to training and time off to do the job. On the back of that the TUC have tried to get Govt support to take forward an amendment to the Equality Bill to give reps those rights and have been told that they won't take the amendment forward. Ad astra per aspera
TUC does use this type of research when invited to give evidence to Westminster committees but it is only taken on board if it fits with the direction the Government wants to go in anyway.
If a committee or Government leads are already focused on moving policy in a particular direction they will give emphasis to evidence and conclusions that support their view. That isn't breaking news. Ad astra per aspera