Off-topic but : Yeahhh, every threads I see that mentions Witch Boltz would just have people bashing on the spell 😅
So, yes, for future editions, it would be nice the see an improvement on the spell.
In the meantime, why would people pick it? For RP/Flavor reasons. For example, someone focusing on Lightning Damage, but I would maybe then use another "Lightning" spell when available.