Certainly.
The joint health and safety committee is the vehicle in the workplace where you have representation from both sides, in an egalitarian forum, to deal with the workplace issues. But now, when they're removed from that process, where do you have that internal responsibility where health and safety is everyone's responsibility? Now it's very unbalanced and lopsided.
So you need to have participation in that process, all the work parties equally, to ensure that you do have a healthy and safe culture in the workplace.