The problem with Hiura is what it’s always been, he hits homeruns and doesn’t do much else. He is not skilled at getting on base, hitting for average, playing defense, etc.
Those players who hit moonshots while batting .205 with a sub .300 OBP are a dime a dozen. Chris Carter lead the NL in homers in 2016 and was out of the majors less than a year later; and it is why Hiura is with his third different organization in under a year.
At least for me there wasn’t vitriol directed at the player, but there was always a cadre of unbelievers who were fun to debate with, and thought that even after 1000 major league PAs, still thought Hiura just needed more playing time to prove himself.