Water ally. Is it legal?

So. After some try i get and cubed The Crudest boots. Thats nice, 2 ally, but. In active form they become more then cd. Is it legal? Seems bugged ^^ It just TOO overpowered. Before i cube item - nothing like this.

https://i.imgur.com/dPFTZ4d.png

The boots were changed in Patch 2.7.1 (just before Season 24)…

https://eu.diablo3.com/en-us/blog/23695733/season-24-|-ethereal-memory-|-preview-blog-7-9-2021#Items

  • The Crudest Boots: Mystic Ally summons two Mystic Allies that fight by your side. They deal 150% to 200% increased damage and are able to attack with their active forms longer.

yeah, i know. but - active longer then cooldown of activation? its really permanent active water ally.

Nominally, the water ally lasts 15 seconds, though I seem to have perma-activation