What if Whittaker's offensive wrestling is very good now?
We know his defensive wrestling is very good, very hard to take down and very hard to keep down. It would stand to reason that in the time he spent to improve his TDD so much he also equally worked on his offensive wrestling.
He was invited to compete in the commonwealth games for Australia as a wrestler. I'm not saying that makes him an amazing wrestler but I would say that probably makes him a very good high level wrestler. Also I'm not saying that Olympic style wrestling will translate to his MMA game, but as a guy who already had very good MMA experience I'm sure it would be much easier for him to utilize what is good from the Olymic style and merge it into his MMA game.
We didn't see offensive wrestling against Yoel or Jacare, but they aren't really the guys you want to be wrestling with or taking to the ground for obvious reasons.
Izzy on the other hand is just the type of guy you would want to take down if you feel his stand up is too dangerous to compete with for 5 rounds.