Jackson Chourio is hyped up for the same reason Orlando Arcia was. He is really young and hitting well against much older competition. Orlando Arcia catapulted himself after hitting to the tune of an .800+ OPS at AA, while only being 20 years old.
I would argue Orlando Arcia was just as hyped of a prospect, if not more. Arcia's MiLB stats in 2022 terms don't seem impressive, but people often forget he was coming up before (or at the start) of the huge boom of realizing the Dominican was loaded with SS talent. In 2015 (when Arcia was smoking AA ball) MLB only had two SSs with a WAR over 3.1 according to Fangraphs. Now 13 players at SS have a WAR over 3.1. Arcia's plus plus glove along with a bat that could be average or better...that easily looked like a player to be Top 5 at the most premium position in baseball. Of course, he disappointed, but that was only half the problem of him not living up to his prospect potential. SS went from a position with no talent, to one of the most talent rich positions in baseball.