Last year, if the Bucks hit a cold shooting streak, Giannis would just attack in paint for easy buckets and/or fouls. Teams are learning how to defend him better, I think starting with Toronto in playoffs. And if GA continues his poor foul shooting, so what if you hack him.
He is also getting very frustrated with guys drawing offensive fouls on him. Last night was classic Smart. Teams like Boston will probably start to play smaller, strong guys against him. Bigger guys are too slow to guard him. It will still require some doubling, but all in all, we are learning that he is beatable.
Last night was a huge injection of confidence.