Why did Daniel Bryan's WWE retirement lose over half a million viewers?

02.08.16 RAW viewership: 1st Hour: 3.907 million, 2nd hour: 3.905 million, 3rd Hour ft. Daniel Bryan's retirement: 3.368 million (lost 537,000 viewers).

Former WWE writer Kevin Eck stated on PWTorch Livecast (May 5, 2016); "Daniel Bryan wasn't setting world of fire, when it came to ratings in certain segments, live attendance, same thing with CM Punk, the numbers just weren't there to support that he was over to the level that certain fans thought he was."