Amanamu's Gaze - unintended behaviour? 1-2 div??

I recently tried using Amanamu's Gaze (AG) socketed into a Darkness Enthroned belt "boots" type. And while I did totally skim by the last modifier text Other Modifiers to Movement Speed except for Sprinting do not apply and cost myself the currency. I expect these interaction weren't considered when creating and limiting this items usefulness.

Trial of Sekhemas - Hare Foot (40% movement speed increase) Boon DOES NOT take effect.

Acceleration Shrine DOES NOT take effect on movement speed.

Sprinting - does not take into consideration the % increase you have from walking and thus you sprint SLOWER ie base sprint speed with 0% boost.

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Opinion: Movement speed is a chase item (pun intended). I don't understand the friction against allowing players to move faster by stacking modifiers, augments or otherwise. Rune of the Chase was limited to 1. AG is limited to 1 AND you can't stack it with your boots or additional augments such as Rune of the Chase.

You need 300 SPIRIT to full saturate AG with "100% increased socketed effect"... You need 600 SPIRIT without it... nobody is saturating this to 40%. I could understand if the 100% increased effect lead to 80% movement speed. But this is not strong enough to warrant the cost of the belt, the cost of the augment or the value in skipping Headhunter.

thanks