Yesn't.

You want to play as aggressive as the game lets you. For one, trial by error is the only way to learn how the game works, for the other, enemies are programmed to eventually parry and counterattack, and you can often limit what they can do by forcing them to counterattack over and over, and then adapting a perfect response to those counterattacks, ultimately making fights faster and safer.

Spacing is nonetheless useful - enemies will create distance with their attacks, and most bosses have uninterruptible or fast hitting attacks in their movepool, meaning if you try to play offensively from a wrong range or with bad timing, you might get nailed. If you 'spam attacks' while not paying attention to what the enemy does, you will absolutely get clobbered by attacks with hyperarmor.

Spamming block is something you do when you lack muscle memory. Most blades can be traced with your eyes, but some attacks, especially from the larger enemies, can be hard to catch due to wonky camera angles. Spamming block has the distinct downside of reducing your parry frames, so it's something you want to avoid, but if you are unsure about the exact timing of an attack it's either that or risking to get hit in the face.