Medium armor set bonuses are so bad

Selodaoc

Why are all medium armor setbonuses so bad compared to light and heavy?

*Light armor
VR11 - Way of Martial Knowledge Set
(3 items) Adds 14 Magicka Recovery - Good
(4 items) Adds 1 Weapon Damage - Good for destro staff
(5 items) Way of Martial Knowledge: Target takes (10)% from the next damaging attack within (2.3) seconds - Nice for dmg

VR12 - Wise Mage Set
(3 items) Adds 115 Max Magicka - Good
(4 items) Adds 1% Spell Critical - Very nice
(5 items) Enemies you attack have reduced Armor and Spell Resist. Attacking a different enemy removes this debuff from the previous target. - Very nice for dmg

*Heavy Armor
VR11 - Way of Fire Set
(3 items) Adds 21 Health Recovery - Decent
(4 items) Adds 350 Flame Resistance - Decent
(5 items) Way of Fire: Weapon attacks have a 10% chance to cause (19) Flame damage. This effect can occur once every (4) seconds. - Decent

VR12 - Immortal Warrior Set
(3 items) Adds 173 Max Health - Good
(4 items) Adds 5 healing taken - Good
(5 items) Once every hour, when you die, you instead turn into a statue for 5 seconds. While a statue, you are immune to all negative effects, but can still be healed. - Has potential to be very good

Then you compare it to Medium armor

*Medium armor
VR11 - Way of Air Set
(3 items) Adds 14 Stamina Recovery - Decent
(4 items) Increases Stealth Detection radius by (2) meters - Wait, how does this help us in PvE?
(5 items) Way of Air: After a successful Roll Dodge, Light and Heavy weapon attacks deal (20)% increased damage for (8) seconds. This effect can happen no more than once every (1) minute. So, we have to rolldodge to increase our normal attacks..


VR12 -
(3 items) Adds 115 Max Stamina - Decent
(4 items) Adds 1% Weapon Critical - Very nice
(5 items) When you kill an enemy, you gain increased Attack Speed and Movement Speed for 3 seconds - Really bad, an attack speed increase (normal attacks) and movement speed increase..for 3 seconds! Even more useless in bossfights.