Killing Heide knights or the Syan knight gets you absolutely nothing.
Minus an entire armor set each, a lightning-based straight sword with the moveset of a mace, or a lightning-based spear / lance from the ones with the corresponding weapons. Or the Grand Lance in a chest by the Syan Knight in the first level of the game.
If you take a swing at a heide knight while his guard is down, he'll instantly hit you back before you can do anything.
Hitting defenseless enemies after a backstab trivializes content, but you just want to backstab and spam R1 for an instawin.
Which means unless they're so insanely slow you can hit them during the combo, like the old giant knights, your only option is to wait for them to do 13 combos until they finally do a whole one, or take your chances and just hope they don't continue the combo when you move in to counter them.
If you mentioned the Greathammer-wielding Dragon Knights you'd have a point, as they literally attack endlessly and are a prime example of a bullshit enemy - for everything else, read their animations. You sound like the guy who got killed by Fume Knight's followup 270 degree swipe during 'Velstadt phase' 7 or 8 times and refused to learn to read his actions. Most other monsters have a short twitch, or a conspicuous pause that signify a continuation in their combo.
By contrast, before you even get to the fucking hub in DS3, you've had 2 optional enemies that drop special loot for you
DS2 has 2 Ogres, Old Dragonslayer, Knight set, Cling Ring, Sublime Bone Dust, an Estus Flask Shard (the well), Covenant of Champions, Gender changing, Blue Knight Covenant, optional fight with the Pursuer on a big open platform, and you can choose to do with No-Man's Wharf, or The Pursuer to complete The Lost Bastille. All connected to the first area. If you have the Cat Ring, you can even jump down the center hole and do The Black Gulch and assorted stuff. What the hell more do you want available to you from the absolute beginning of the game? SotFS gives you the goddamned Grand Lance 30 minutes into the game - a weapon previously available after 90% of the game is done, a weapon that will scale VERY well into endgame that provides between 500 and 550 AR depending on your build.
getting grabbed by the ogre from 10 feet away,
Time your rolls better, it's perfectly doable.
Heide knights doing some 3 frame wrist flick that hits in a 3m radius 360 degrees
You got greedy, he always pauses before doing this.
Oh, and I briefly considered trying a no bonfire run, until I broke three fucking weapons just going through forest of giants and had another break during the dragonslayer fight. Forget that shitfest.
it's supposed to be a challenge. You want to equip 1 weapon, and forget about everything else. Clubs are available for cheap at the start. Strike damage is fucking insane for the first 1/2 - 2/3 of the game. Stock up on them.
If you simply said that the slower, even more methodical pace of the game wasn't for you, I'd understand where you're coming from. But you're saying the game is shit because the cheap tactics from DS1 no longer apply for every enemy. "NOT DS1" is not a valid criticism of a game.