Agreed. They wanted a more balanced lineup, better defense, better base running, and more team control in the OF (Springer was the only OF locked up beyond 2023 heading into the off season). Hernandez and Gurriel each had only a year of control left, were both RHB, and both had issues with defense/base running. I feel like the roster fit for what Atkins wanted was a much bigger factor than personality. If Hernandez was a LHB with above average defense and the exact same personality, would they have traded him? Just to replace him with KK? I very much doubt it.
With that said, I do think the Jays want to get more serious, which Bichette alluded to and the elimination of the HR jacket points to as well, but the roster turnover seems way more about specific skillsets that the front office was looking for.