I'd like to see noed, DH, DS, unbreakable, CoH disabled for a week

Not much would change for killers as by and large most killers don't run noed. Disabling CoH would just show that indeed people not having a healing safety net means they will go down more often, doesn't require much of thought to show that. Unbreakable isn't as common as people think it is so not much will change.

The only thing that might change is survivor stats related to DH and DS. Though you can already figure out what will happen, there will be an uptick in people getting hooked and killed and chases will be relatively shorter on average. Then again people will just go back to using the other perks that would give them similar effects and not much would change. People would go back to using sprint burst to bait the first swing rather than DS to bait the second. Chase will be extended a similar amount of time just from the start rather than in the middle.

DS being turned off just means people have to rely on teammates to make effective plays. It they have one or two decent teammates who know how to take its and flashlight blind/flashbang then other than a slight slowdown in game progress not much really changes.

If one perk ruined your win in a 4 down situation then you've done something wrong. That thing usually being not just waiting to see if any of the suddenly stands up. If they do hit them and congratulations they can't get up like that again. The again, a "win" isn't about how many die so much as it is how much of the point spread you've covered. Contrary to what has been said of livestreams both sides can indeed achieve their "win" condition but that's another story

If the survivor jumps in the locker just leave them there. They ain't doing a gen while in the timeout box so not an issue and if you don't want to wait the minute out you can just eat the stun. Your mileage may vary depending on the state of the game, but nothing ventured nothing gained.

CoH has made hit and run much less viable, but that isn't unknown to anyone even the devs. You get more data having that on than off because we already know what the game was like before it was released and since boons aren't universally ran by everyone you get both sets of data by default.

DH hard is used to do both and it is designed to do both the issue is just dashing for distance is proving much more beneficial than the fact you can dodge an attack. Just because people favor using it one way over the other doesn't mean the other portion doesn't exist and isn't used. Sprint Burst offers the same exact dodge interaction, but without the dash as it is more a weird tick in how the game decides what version of events makes the most sense for both players. It's also extremely consistent which is why before we ever got David King and his dead hard the thing to do was to hit your sprint right as the killer attacked making them miss. There is however more risk involved since you're not going to have a sudden dash mid chase.

You're still getting the distance and extra health state just at the start of the chase rather than in the middle with the increase in time being rough the same. Turning DH off won't prove anything that the players or the devs don't already know. The situation isn't the same as when they needed to see what the condition of the game was like when killers didn't have Bloodlust.

The Bloodlust test had to happen because it is a mechanic innately shared across all killers and players can't choose to simply play without it the same way you can with a perk. You can collect perk statistics much easier by leaving them on as not everyone uses the exact same perks so you're going to get the data for both with and without.