There is no resource management is Bloodborne. BB is Dark Souls only that every time you get stuck you spent 30 minutes farming vials in Central Yharnam's brige. If you want to call that "resource management", then it's piss poor resource management.
Telling people to "git gud" so they don't waste vials doesn't mean anything because people need to play the game to "git gud". Even if you fight a boss over and over without using vials at some point you'll want to attempt it using your vials and if you still don't succeeded you are back to Central Yharnam farming vials. Making the vials like the Estoc wouldn't change anything other than the fact that people wouldn't need to go back at Central Yharnam to farm low-level mobs every time they get stuck.
Telling people to "git gud" so they don't waste vials doesn't mean anything because people need to play the game to "git gud". Even if you fight a boss over and over without using vials at some point you'll want to attempt it using your vials and if you still don't succeeded you are back to Central Yharnam farming vials. Making the vials like the Estoc wouldn't change anything other than the fact that people wouldn't need to go back at Central Yharnam to farm low-level mobs every time they get stuck.