I am really starting to wonder if item levels and item level requirements are simply aspects that the developers randomly choose here as they don't seem to follow any sort of logic.

Why is Esoteric gear rated at ilevel 200 when Alexander Hard items are ilevel 190? They create a set of dungeons that have an ilevel 145 requirement then push out i200 rewards while the create a i170 required raid then set the rewards as i190? I really need to understand the logic in this because it makes little sense to me.

Esoteric gear should be rated at i190 and upgradable to i210. Alexander Prototype gear should be either i190 or even boosted to i200. This would create a logic gear progression path rather than creating an entire set of completely redundant i190 gear that is about to be replaced within the next couple of weeks while also following some actual logic in ilevel requirements rewards.