I think I've only ever needed to use Withers once or twice and a Revivify scroll maybe a dozen times after 500+ hours of gameplay, and this was usually only because of some Larian cheese homebrew the enemy used against me.
For example, had to use Withers to bring a character back because the hag tossed the character down the hole. No body. Had to go to Withers. She was 15 feet from the edge, mind you, and somehow the hag threw her into the hole, but that's what I'm saying. If enemies couldn't throw you 15+ feet into holes, I wouldn't have needed Withers.
Likewise, another example was the Githyanki Patrol. They Misty Stepped up onto the battlements back when height advantage existed, and they wiped the floor with my characters by pegging them at long range from above. Only Astarion escaped by fleeing to the Flaming Fists and getting their help in killing the remaining Githyanki. Then he returned and used Revivify Scrolls on everyone.
Why do I hardly ever need Revivify or Withers? Because anyone can throw potions around and potions can heal people with BA. It's too easy to recover from injuries.
But then, if they didn't do this, the enemies would most likely become so much harder, even in their nerfed state. Now wouldn't they?
Then again, if they trusted the original 5e system, none of this would be a problem.
Again, potions should not be more powerful than spells. If I can use potions like candy and pop them as Bonus Actions every round, healing 2d4+2 or even 4d4+4 HP, AND I can have allies also throw additional potions to then increase my character's HP even higher, I could essentially restore a level 4 Fighter from 1 HP to 45 HP in one round if all four characters heal him/her.
But why should I? If my fighter goes down, a single character can still use Help and bring him back immediately. Each round, he falls, and each round one of the party members just pops him right back up. Mama Spider is no longer a big deal because she's so focused on keeping the downed character down that she's not really attacking the rest of the crew who is sitting back and just dwindling her down. Why bother healing the fighter full? She'll just knock him down again next round. Keep using one character to bring him back up, and the other two can just destroy her.
Done that tactic before. Yes, at some points she gains more attacks, but when you can have Astarion hide and pop out and Sneak Attack and then pop back into hiding again, or you can have Gale hurl some powerful spells at her that weaken her quickly... It turns the Mama Spider into a youngling real quick. This will be especially true once the level cap is lifted and we're at like level 5 by the time we face her.
