For whatever reason. It’s one of the best stats to have on Gloves, but it doesn’t influence your attack speed when using the Hero’s Scream ability while mounted up on a Guardian.
Given that Guardians are rather specific and excel at different things, I find no reason for them not to be affected by this stat. For example, the Sultan Guardian is supposed to be the most effective one against Towers and Obstacles, especially given that its attack damage type is Blunt, so he would benefit tremendously from said Scream Attack Rate (Hero) statistic, but it can’t.
Please fix this.