There's little that's more controversial than instakill things. We've gone from insta death poison at level 1, to much weaker poisons in 3e, to poison that's pretty worthless as a threat in 5e. It's basically just damage now.
We've gone from energy drain with no saves and guaranteed exp loss even if you got your level back, to 3e where between two easy saves to get the level back and easy to get restoration spells, I never once saw a level lost permanently, to whatever the hell 5e has done. 5e's "energy" drain is so ineffectual that I've never even seen it have a temporary impact. You don't lose many off your max hit points before the creature dies and you get it all back when you rest, and you get a save to resist the weak sauce.
You now don't die from negative hit points unless a single attack takes you negative your entire hit point total, something which is pretty unlikely at level 2 and is pretty much non-existent at level 3 and up.
You may or may not have cared about those fangs, but there really isn't an argument that the fangs of 1e and 2e have diminished and grown weaker with each WotC edition.
Those things are also a part of what people mean when they say that the game has become Disneyfied.