I don't think Gane's mistake was giving too much respect to Jones, he probably assumed Jon's plan was to take the fight to the ground (since we all know Gane is lacking in that area) and was overly cautious. But we can't dismiss the fact that, like him or not, Jones is simply really good, probably the best fighter in the history of the sport.

And who knows when Jones-Miocic will actually happen? It could be well over a year, given the recovery time was estimated to be around 10 months. I'm not convinced the best move for Tom is just to sit out and wait, as it could mean he would be inactive for even 1.5-2 years and (as you said) there's no guarantee that the winner of Jones Vs Miocic will not announce their retirement after that fight.