This is directly against their philosophy. Here’s their stance as of December: Locking in Mastery Feels Bad - #16 by EHG_Kain
Agree or disagree, EHG wants the mastery selection to be what shapes the class fantasy of your character.
From a lore perspective, Elder Gaspar guides shades of our former selves (those that tried to restore the timeline and prevent the Void and failed) whom also trained in these masteries to our current self, the Traveler that still exists in this timeline (a bit timey-wimey). The skills of those past selves (shades) are guided to us and empower our abilities further and also explains our ability to “dabble” in the other masteries.
It’s a required step in our evolution as the savior of time and foretold holder of the Epoch. Without this empowerment, we would have no chance against Rahyeh, the Immortal Emperor, Orobyss, anyone.
There are class cinematics that no longer exist in the game, the introductory cinematic upon character creation is now a homogenized “Traveler’s” story and background on the story of Eterra (which provides MUCH better context than the individual class cinematics of pre-1.0).
I have recordings of each of those class cinematics and go over the lore and “feel”/fantasy of each for anyone interested in that kind of character identity and less concerned about the “meta” of a given patch 
Here’s that video if interested:
Last Epoch Lore - Overview of ALL Classes and Masteries | Class Cinematics Included