Is AMC currently dealing with a major ratings crisis or Walking Dead dealing with a constantly sharp viewership drops? Answer for both is no.
2015 likely is the series peak considering the numbers but Season 6 was still hovering with Season 4 for numbers. Some weeks being better, some being lower, and then close to a tie near the end.
Even with the almost 2 million drop, its still almost 2 million higher than 2013's finale which is something that can't be said the same for WWE's post-Mania shows and RAW in general.
https://en.wikipedia.org/wiki/The_Wa...ies%29#Ratings