Eternal Vigor's 5 piece health bonus (The one being removed) isn't just a normal statline, it gives 1407. The set without it just gives 129 health recovery (worthless- There's a reason 5piece bonuses that grant health recovery grant at least 900) and 129 mag/stam recovery, and while above 50% 337 more stam/mag recovery.
That's it. Your entire 5 piece set gives you 449 stam/mag recovery? Blue food can give 493 if you need that recovery, and this is a heavy set.
Why would anyone use a 5 piece heavy set that only boosts recovery, and you have to keep up above 50% for the bulk of it to apply?