I know announcers and commentators have to be bias but it's OK to acknowledge and sometimes even celebrate a great play by a player on the opposing team, especially if it's just a 2 point game in the 2nd quarter.
In the example above, the local Cleveland guys didn't acknowledge the King getting crossed, but did calmly say Avery Bradley is a good shooter; The local Boston guys got a little more excited and celebrated Bradley "losing LeBron" with an evil laugh.
I assumed the NBA YouTube channel would prefer the Cavs version, so I went to see which one they uploaded and SURPRISE, they didn't upload any version of LeBron getting crossed. But they did upload a video of the Cavs practicing...