[Question, 1.15.1] OnItemUseFinish no worldIn.isRemote check?

Hi,

I have a quick question about handling game logic while modding in minecraft. I understand that I need to use !worldIn.isRemote to check if you wanted to execute game logic in minecraft (such as onBlockActivated). But there's one thing I don't understand then. If I look at the 'SoupItem' inside the onItemUseFinish for example, there are no checks for (!worldIn.isRemote). Why is that?

The code inside soupItem:

   public ItemStack onItemUseFinish(ItemStack stack, World worldIn, LivingEntity entityLiving) {
      ItemStack itemstack = super.onItemUseFinish(stack, worldIn, entityLiving);
      return entityLiving instanceof PlayerEntity && ((PlayerEntity)entityLiving).abilities.isCreativeMode ? itemstack : new ItemStack(Items.BOWL);
   }

Thanks in advance,

Kander16