Thanks for this additional commentary. To me this actually sounds perfect for a Sanctified Stalker ranger, that they would normally want to use their weapon but that in some specific situations when dealing with enemies vulnerable to radiant damage, they have an option in their toolkit not available to other rangers. As long as the damage still increases for rangers at later levels so as to at least keep the cantrip situationally useful.
Yes, that's pretty much how I see it 🙂
It's still useful, if only a bit more situational.
