cooldown between each time Kled gets Scaarl back is not mentioned in passive description

Kled's passive reads as follows: MOUNTED – INNATE: Kled's health cannot be improved except through growth, instead Skaarl has 400 - 1420 (based on level) (+ 100% bonus health) maximum health and, while together, all damage dealt to the duo is suffered by Skaarl. Upon being reduced to 0 health, Skaarl flees and Kled becomes dismounted. While Kled dismounts Skaarl, Kled enters Stasis icon stasis briefly and any damage in excess of Skaarl's current health is ignored.

What is not mentioned in this passive is that there is a cooldown between each time he gets scaarl back, therefore he can not infinitely get scaarl back in one fight. The problem is nowhere in this description does it mention the cooldown and that you can not ping the cooldown while the passive is not up. I would like to see this passive description updated and the ability to ping added, please upvote so that riot sees this and takes action.

(Posting this as a bug, I'm not sure if general gameplay would be better, but I consider this to be a missing feature long forgotten by riot)