I believe the bars being raised is not just a reflection of the added mobility/ damage resistance, from one simple little thing, the description of what those stats actually do. You can mouse over the stats for it to tell you, Toughness is actually your maximum life, it has nothing to do with taking damage, so I wouldn't think that you would just gain some life while using that skill. Also Agility says movement speed AND jump height, so I wouldn't think the sprinting boost would be shown there either, since it doesn't mention jump height too. And for the sake of being thorough, Recovery is how fast life recovers once it begins to recover, It won't help with skill cooldowns.