Lutte , you're not wrong in your assessment but I think you're underestimating those YT players skills. The kind of spatial awareness they show by avoiding attacks by slowly side walking without dodging is akin to those sick Lv4 no-kill YT playthroughs. Also, anyone cold as that guy facing Defiled Amygdala knowing he can be one-shot is far from your average competent player. I have half a thousand hours into BB and don't have such skill and cold blood.
Also, I think you should play the DLC before having a conclusion about BB difficult. As is notorious with From, base game bosses are easier than DLC ones. Orphan of Kos, Ludwig, Laurence and Shark Brothers may well change your opinion on the matter.
Bloodborne DLC bosses really aren't that difficult on NG. Ludwig has two problematic attacks in his first phase (the jump and the charge, both capable of one-shotting even at full health), but if you manage to survive those with a lucky random roll, his other moves aren't dangerous and are easy to avoid. His second phase is a joke: his attacks are extremely predictable and you can die only if you get by the very long charged magic attack.
Laurence isn't any different from the Cleric Beast and you can completely skip his second phase with the cannon.
The Orphan is the only one out of the three that can be considered a true challenge even on NG, because, even if his attacks won't one-shot you, he is almost too quick even for a Bloodborne boss.
On subsequent playthroughs it's a completely different story, because all of them have obscene amount of HP and their damage is insane. Laurence is a nightmare: he never goes down and during his second phase you can't miss a single roll or you are fucked.
