Ironically the 2024 can blow through spells fast as Hail of Thorns and Lightning Arrow can both be
So technically anytime a Ranger misses an attack they can just decide that they're arrow explodes in thorns of lightning.
- Triggered on a miss
- Do not have concentration
Hail of Thorns is triggered on a hit, not a miss unless I am missing something and it is pretty weak for a 1st level spell.
Lightning Arrow can be situationally useful. It is mediocre generally and there are better ways to use a 3rd level slot as a Ranger most of the time, but you are right it is not concentration and is a significant damage boost, especially if you have 3rd level spell slots you are not going to use.