I agree that his swing adjustments are real, and that he deserves another extended look at the big league level, which he didn't truly get in his stint to start the season. In fact, he was set up for failure with how Counsell was playing him, and that he didn't fall flat on his face like last year is noteworthy imo.
Also, if I'm not mistaken, his 2 home run, 7 RBI game came against Max Meyer, one of the top pitching prospects in all of baseball and a pitcher who is armed with a big heater. It's just one game, but that he was able to do that against a pitcher of that caliber says something to me.
Finally, there's no way I'm trading Hiura right now. His value is at an all-time low. That's just asking for him to catch on and start hitting well with another team, while we get next to nothing in return. Would be a disastrous outcome for a small-market team like ours that is so close to the promised land and which could stand to benefit from more hitting.