I wonder why Amazon think that their best way of dealing with EU investigations into working conditions in their warehouses is not to turn up to committee meeti

I wonder why Amazon think that their best way of dealing with EU investigations into working conditions in their warehouses is not to turn up to committee meetings. If they attend then they can tell the committee that everything is great, how standards are improving, etc etc. Not showing up at all seems a bizarre strategy to me. What are they afraid of?