Component "minecraft:knockback_resistance" doesn't work on the player entity behavior file

When applying any value to the behavior component "minecraft:knockback_resistance" in the player.json behavior file, nothing changes, it’s still the normal bedrock knockback. Though, when applied to any entity besides a player, it works fine. I'm not so sure why this happens, but hopefully it can be fixed.

How to reproduce issue: download behavior pack (which has the knockback resistance applied to the player entity file)