Hello,
Thank you for taking the time to suggest this. At the moment, we don't have any plans to implement this feature, as it doesn't quite fit our server direction. The fireball knockback is determined by your direction that you're facing. Therefore requiring skill to use appropriately.
Additionally, we will look into reducing the damage in other ways, however we cannot confirm when or if it will happen.
We still appreciate you sharing your ideas and support for our community.
Best wishes,
Gamster Team