I don't it was properly tested but it definitely didn't consider all variables though especially considering one of their big selling points has been any class/any comp can clear the fights and then something like this shows up which shows this isn't the case. It does seem there is a disconnect between job designers and battle content guys cause there's the whole issue from the paladin buffs. However, recent duties have been designed to include features that reduce stress on tank and melee DPS jobs, such as significantly larger boss targeting circles. Because of these design choices, the unique advantage of paladin's high sustained damage loses its impact. They've basically cornered themselves making all the jobs revolve around the 2 min burst window.