About Esuna, Exalted Detriment and Leeches change

[Ootarion]

Okay so, a lot of us probably know by now what is getting ready to happen with these three spells and a lot if not all of us know what these spells do, in that they all remove detrimental effects.

That aside, these spells are inherently learned by White Mage (Esuna), Astrologian (Exalted Detriment) and Scholar (Leeches) at levels 18, 18 and 40 respectively and what bothers me, is that in Stormblood, the devs are changing them from inherently learned spells to Cross-Class/Role abilities, but why? WHY do this? Why make these spells something you have to WASTE (and it is a waste no matter what the Devs or anyone says) a Cross Role slot on to use? WHO is going to leave an essential spell like these off their hot bar? And WHY would you? Alot of enemies after like lvl 20 range dungeons use detrimental effects, heck, some prior to lvl 20 do. This is a completely ill thought out, insane decision. Ive also noticed that Luminiferous Aether for Astrologians is gone, as is I think Shroud of Saints for White Mages? Why were these made Cross Role skills to? Im aware they get turned into Lucid Dreaming which is yet ANOTHER Cross Role skill, but again....why? They all had their own versions of MP Regeneration, why do this?

Edit: Now I am willing to admit when I am wrong, so out of fairness I ask that people please explain to me why this is at the moment, a thing.

Addendum: If what I have spoken about is no longer the case, then someone please clarify as to what is current.