Useless Nemesis Add-on

I am sure someone has noticed this, but I figured I would make a post anyway. I wanted to talk about about Nemesis’s addons, three in particular.

First one is T-Virus Sample(Considerably increases mutation rate when destroying zombies with a tentacle strike). This addon is Green rarity. Ok nothing wrong there.

Next is Zombie Heart, which is a yellow rarity (Moderately increases mutation rate when destroying zombies with a tentacle strike). The same effect as T-Virus sample, but just weaker. This makes sense because it is a worse rarity.

Last, Tyrant Gore, which is green rarity (Moderately increases mutation rate when destroying zombies with a tentacle strike / Decreases zombie respawn time). Why would anyone use this addon? It is the same as zombie heart, which is yellow, but has a downside. Additionally, t-virus sample is the same rarity and works better, but has no downside. So there is no reason to ever use tyrant gore.

Am I missing something? Or is this addon useless?

Edit: I am an idiot. Decrease is good not bad. Disregard.