Apples and oranges do not need to be balanced. Just because they share a name doesn't make them the same thing. I mean Flexible Casting allows a Sorcerer to use spell slots and is a class exclusive ability, so it's basically the same as a 2014 paladin smite and needs to be made into a spell, right?
You are totally right, there is absolutely no difference between creating sorcerery points and dealing damage. Just like +5 AC is 100% identical to attonement to restore paladin powers.
Oh wait... those things aren't the same at all.
But dealing damage on hit compared to dealing damage on a hit plus an effect rider... ARE.
Let's look at the differences. 2014 smite is not a bonus action, cannot be countered, is not subject to silence negating the ability to use it, and can be used more than once per round.
Further the balance argument is just flat out wrong per WotC. WotC has claimed to use more than once that we can use both 2014 classes and 2024 classes side by because they are balanced the same. Is that true or are you saying that they are lying to us about it?
Trying to use the backwards compatibility to argue that Divine Smite wasn't out of line is the same as admitting that the previous Druid Wildshape with the templates is 100% equally balanced to the 2014 Moon Druid.
They ARE changing things to rebalance them, and yet again, despite you hating it, Divine Smite is meant to be on the same power level as the smite spells. Stop trying to conduct special pleading. If you don't like Divine Smite being a spell, then just advocate for ALL smites to no longer be spells. But you can't have some that are spells and some that aren't.
Citation please. I want to see where every time you complained about it that they told you those things.
It was their youtube channel where it was addressed last. I'm not re-watching hundreds of hours of video to find it. Especially since I know you, and you would just change the definition to claim that you are right anyways.
And this is objectively false.
Only if you decide to be pendantic and declare that a paladin exclusive ability to spend a spell slot to deal damage on a hit with a melee weapon is not
exactly the same as a paladin exclusive ability to spend a spell slot to deal damage on a hit with a melee weapon plus a rider.
And you are that pendantic, so I will rephrase. For all practical balance purposes, divine smite and the smite spells are designed to be the same sort of thing. That is why the damage for those spells is what it is.