Riot's math is way off

I was just in a game where I had Olaf as my carry with guinso's, bloodthirster, and ghostblade (usually different 3rd item but was desperate and this makes him jump behind carries which is cool). Everyone on both teams were dead except my Olaf and enemy Braum. Braum was 2 stars, Olaf was 1 star, and braum had warmogs. I get that Braum might win 1v1, but guinso's was stacked up to where Olaf had 5+ attack speed (idk if it caps at 5 I forget). It was so fast he was swinging at least 5 times per second...crazy fast. Braum's hp wasn't going down. Olaf's wasn't really going up. How could someone swinging so ridiculously fast, PLUS having bloodthirster, not even kill a braum with warmogs??? Then at the end it did that end of the round speedup thing and still nothing. Braum's hp wouldn't move. Even when he didn't use his ability...no damage was going in at all. So how does warmogs out-heal the damage from an Olaf with at least 85 AD (if BT gives 15 ad, I forget) and hitting 5+ times per second??? Warmogs does 6% missing hp per second, and Braum only had like 1750 hp so that's 100 hp per second. So Riot's math is clearly off (probably on purpose, see my post about "ninja-nerfs" linked at the bottom) because Olaf should be doing like 350 before armor mitigates, PER SECOND. Braum only had like 60 armor. ninja-nerfs...especially when building items like BT + Guinso's.

Could anyone do the math to help me solve this? I'm not 100% sure how it works, so I may be wrong, but I doubt the 60 armor could mitigate that kind of damage, and I doubt Olaf couldn't outheal warmogs with guinso's + BT. If anyone could show me the math it would be really helpful.

My theory on Riot's ninja-nerfs (basically that the math / numbers on items / champion stats aren't actually accurate in the programming, and Riot has a bunch of patches which they DON'T publish in patch notes, where they nerf certain item combinations and other OP tricks that people find. They do it for balancing, and I get that, but it's sort of cheating when they do it in a way that isn't publicly displayed in patch notes, and a way which causes items and champions to show inaccurate stats. I built BT + guinso's on Olaf for heavy sustain, as it should work well with his ability. Then I lose the game because he can't win a 1v1. Makes me wonder how many tens of thousands of games have been lost simply because Riot's programming doesn't support the numbers which they publicly display on champions / items. If i'm wrong here, pls show me the math so I can get a better understanding of why warmogs braum is so unkillable.

https://boards.na.leagueoflegends.com/en/c/teamfight-tactics/AfbUNfHG-tft-balancing?show=new

Edit: I think Olaf may have had more AD than that from ghostblade, that probably gives 15+ AD too..