Healing prevented is still bugged since beta

I meant to address this since day one of launch but completely forgot about it since the beta galileas shield if you run wound prevents healing doesn’t work at all. I have so many games and hours from beta and since l that launch with gal fighting many healers that support really well healing people but yet I haven’t prevent any healing even though I stunned someone that is being healed and still getting healed even though I’m supposed to prevent it. It never worked in the beta at all and still doesn’t work. So as it is useless to run wound and take the other helix seeing as you cant prevent heal bet that makes everyone happy seeing as it worked would make more people complain.