Should they keep Bloodlust tier 1 but remove 2 and 3?

Why do you think BL is outdated? A lot of people saying this seem to think BL is some sort of magic free advantage that seriously impacts normal chases rather than putting a time limit on how long you can loop at one object.

I personally think BL is fine. If the killer is willing and able to invest 45 seconds into a loop, and your in a position where you can't break LOS, guess what? Your not actually doing something very skilled as a survivor. Learning to do a loop isn't trivial, but it isn't 'hard' and it is entirely rote to do an optimal loop, especially around objects that don't block LOS and thus don't have real mindgame potential. So saying 'The killer is just brute forcing it' is stupid... doing a loop is the SURVIVOR brute forcing it, creating a scenario out of the geometry of their relatively hitboxes to extend out time with actually nothing the killer can do about it besides running the loop.

There is this meme that Bloodlust is 'low skill' but in reality what it does is forcibly make it so you can't get a 'safe zone' with a pallet outside of super extreme 'megasafe' scenarios. I think that is fine, in normal play scenarios 90% of the time the killer farming up to BL3 is the wrong move, and survivors can just... not allow it to happen by abandoning the loop and resetting BL and absolutely screwing the killer. In that 10% of scenarios it serves to force the survivor to respect the killer.

Complaining about Bloodlust strikes me as complaining about old pallets pre-vacuum but worse. Once vacuum was added, all tension left the survivor side because now there were massive safe zones the killer couldn't hurt you all around the map that made extending chases indefinitely trivial, which made doing gens and actually plotting out your movement over the map very boring because you always felt like you could last indefinitely. Bloodlust lets survivors waste time (Quite a lot of it in fact) while still saying 'Ok but you can't JUST loop everywhere all the time anymore.' DBD is just NOT FUN when survivors can treat any pallet+window combination as an indefinite or even just long term tool to keep a chase going, and we know that pretty solidly. I think that means BL is in fact, not outdated.

After all, the geometry problem it exists to solve has NOTHING to do with vacuum pallets, so saying 'vacuum is gone so its outdated' is kinda... dumb? It existed to solve problems with entirely non-pallet based 'loops' where the amount of turns on a wall made it so the killer was slower than the survivor, meaning perfect survivor play made that area an infinite. Vacuum pallets going away doesn't change that, so the conditions that made Bloodlust required are... still here.

Its also a pretty narrow and well tuned mechanic. Bloodlust 1 happens pretty much automatically for being in a chase, you can't NOT get BL1 after getting a hit unless the survivor makes a mistake, and they are such minor movespeed increases that you won't notice them even when they are happening that much until you get to 3, they just let you turn those corners slightly faster to ensure that weird things like 'a hook spawned next to this wall' doesn't make a loop an infinite, and, again, getting to 3 means either Killer or Survivor made a huge mistake.

TL;DR: You shouldn't NEED to be able to run one loop for more than 45 seconds. Also, literally nothing about why bloodlust was need was changed, so this test is actively kinda stupid?