A problem with Mad Grit

Before you start saying "Mad Grit is rarely used" listen to me for a second. So Mad Grit gives you no miss cool down while carrying a survivor right? When you try hitting a survivor you are lunging forward right? Do you see what I'm getting at basically Mad Grit isn't used for people blocking the hook no it's basically used to get to a hook WAY faster because of the fact you have no miss cool down and since you are constantly going forward it basically just means free hook. Now I get that a survivor shouldn't have you know a free escape they need to work for it but I mean looking at it why not just use Agitation you move faster while carrying a survivor right? I use Mad Grit a just in case someone brought Sabo even then I barely use it because most times I just trick survivor into Saboing a hook i'm not going to. Would I say it's an exploit...I really don't know if I say yes people get upset if I say no probably a bunch of survivor mains will be upset. Would I say nerf to complete trash...NO the perk I rarely seen yes all I would suggest is just give it the unrelenting treatment instead of no miss cool down why not have it be installed just a simple % reduced even then here are the % numbers.

Tier 1: 25%

Tier 2: 50%

Tier 3: 75%

Not nerfed to be completely terrible but just isn't a no cool down since well basically I can get maybe 10% wiggle before being hooked which isn't much.