As a paladin, people will probably find it weird when I say, shield oath and sword oath should not ignore the global cooldown, and this is for the sake of balance. If people can just freely switch between sword oath and shield oath mid combo, our enmity gaining abilities would overthrow the warrior by miles, and our damage would only end up tying with this. So far, no one even seems to be considering the fact that one single paladins buff alone reverses the detrimental effects of shield oath, shield oath increases your defence by 20%, and makes your ability to gain enmity greater, however it also reduces the damage you do by 20%. Fight or flight, increases damage dealt by 30% for 30 seconds . That's 30 seconds you can have, taking less damage, gaining more enmity, and doing 10% more damage than you would without the oaths on, and this increase in damage would affect the paladins ability to gain enmity too!