does pumping attack speed into + seconds to total attack time skills do anything for you guys?

for whirling assault i've got 33% attack speed from my tree, when i put on martial tempo which gives 25% more speed i get a 0.6 second reduction. is it supposed to be like this? i don't get this design at all. why put attack speed into a skill that has a hard cap on it, and with such tiny results? if we can't scale attack speed with these skills then they need substantial buffs elsewhere

I hardly notice a difference with increased attack speed on Whirling Assault (and no difference to the duration of the spinning itself). Curious as to whether this is a bug or intentional.