I remember watching Eduardo Escobar in the process of breaking out in a similar fashion. I think it was in Spring Training some years ago, during batting practice he was clearly having some "fun" going for homers, and I figured, nah, just messing around, boys will be boys. Lotta laughing with teammates during this. Nope, this was serious work, in between the laughs. Next, during real games during the regular season, every now and then you could see he would take a serious rip during a plate appearance, at a very intelligent moment in the game when a surprise HR could be a difference maker - then if that didn't work he'd switch modes back to his normal swing for the rest of the PA - until eventually he was behaving like an all-purpose hitter fulltime. I don't know whether the same timeline's going to happen for Ay-Ray, but home run power is often the last of the tools to develop.