Man I feel like I'm explaining how the Sky is Blue. There is no inconsistency.
Learning from your mistakes is not "changing who you are". I'm 46 years old and continually learning from my mistakes. We saw Kliff grow as a head coach and fix issues from previous seasons in his first 3 years in the league. There's no reason to believe that Flores won't learn from the mistakes he made in Miami that led to him getting fired. It would be low IQ not to. In fact he tried to learn and fix then at the time by cycling through OC's. Maybe he won't, but there's no reason to believe he can't.
Kyler can also do this, I just don't believe he will. The reason I don't believe he will is that he hasn't been fired or punished in any way for his poor choices. Just the opposite, he got paid. He has no incentive to change outside of personal ambition but his behaviour over the past 4 years has shown a tendency to think his failures are not his own fault because he doesn't seem to have changed how he operates. He's still largely making the same mistakes and having the same issues as he had when he came into the league. He still has the same mechanic issues, still poor under C, still throws off his back foot, still poor throwing on the run despite being mobile, still struggles reading defenses, hasn't took coaching in the offseason like most great QB's etc etc
He's had the opportunity to show he can change already and hasn't, so I have no reason to believe he will in the future.