[GAMEPLAY] Warmog's Armor not active even though HP bar shows 2750 HP

In an ARAM game, I built warmog's armor, and after levelling up, my HP bar said I had 2750 HP, but the passive did not activate. At first I thought it is just coded incorrectly, and different than it says in the item description (>2750, instead of >=2750), but later, I realized that wasn't the case, and that I did in fact have less than 2750 HP. I had 2749.28 HP, which was rounded up to 2750. That leaves two questions. Is the situation where the HUD says you have 2750 HP, but Warmog's is not active confusing (I think it is), and is it relevant enough to do something about it. (most likely not, I mean, I'm the one who was affected by it, and I don't think it's a big issue; at worst, it's solved by levelling up, and at best, I had Jaurim's fist so literally killing a minion gets me over the threshold) Either way, it confused me when it happened to me, so I wanted to make note of it.

(A link to a screenshot of the situation is attached)