I was surprised Porzingis was even considering opting in after the season he had. He was healthy and productive. Time to cash and get that long term money.
Made more sense after hearing they were talking contract extension with PBS. I'd only opt in with a good contract extension if I were in Porzingis' shoes. As injury prone as he is, he could lose $30-40 million over 3-4 years on his next deal if he has an injury hit year next season. Not worth the risk. Gotta have that contract extension.