Dear Stanley,
Thank you for contacting us. We take seriously matters related to officiating and appreciate you taking the time to reach out.
Contact that is deemed flagrant by referees and other hard contact (whether called or not) is reviewed by Basketball Operations after each game. During its review, Basketball Operations uses a set of criteria (which you can find here), multiple video angles and enhancements, and its comparable database to calibrate its judgment. When deemed appropriate, a postgame Flagrant Foul can be assessed (including for contact that was not called in the game), and applicable points, warnings, fines and/or suspensions are issued.
While some of the plays in the video you referenced involved hard contact, none was subsequently deemed a Flagrant Foul given the full circumstances, angles and comparables from past games. Referees do make mistakes, which means they miss calls that should have been made. When that occurs, we collect the data and provide referees with feedback to ensure improvement.
Thank you again for contacting us and for being a fan of Jeremy Lin and the NBA.
Sincerely,
Adam Bernstein
NBA Fan Relations
英文不好，大致上內容跟以下這篇相同（因為是同一個公關回的）
http://www.dongtw.com/nba/nba-news/20160412/000288183.html
基本上他說惡意犯規是可以賽後補判，但他們沒有這樣做，
所以認定並無判決不公的情形.......有誤請指正！
如果有大大可以幫忙翻譯的更口語化一些，應該會更好了解
見血了還要不到惡意犯規，下次可能會變這樣
