It could be meant as buff all classes so no one can complain, since every other class is op. It could be buffing every class to summoner standards for example, Broom jab hitting 15 times. and cross cut hiitting 9 times at the same speed as original. I'm sure a Crossing Broomnado can demolish a summoner with enough elemental dps, and mean while if you do something dumb like get stunned or get caught, summoners can x spam you to death. Nothing too serious. You cant complain when you and summoner can equally kill as fast depending on situation.
Ok sure, find a way to buff a class,without giving it invincibility, to the point where it can 1shot a summoner while being hit with spirit counter attack. Honestly your opinion of buffing everyone to insane levels is what the devs have been doing since New Origins and this is what we have. But yea lets go back to the days of 90% evade invokers, 100% evade Ninjas,Savages,Sentinels,Destroyers and fighters who would also be on that list with back in the day buff everyone to OP. Lets not forget that Permanent 100% Block Dragoons did happen for 2 weeks. The only time buffing everyone to OP is in Moba's and even then they STILL have to nerf characters repeatably.