. . .
But again, if you're still watching the show after seeing episodes where a handful of folks with metal objects manage to kill 40 zombies (slicing multiple heads at one time, never having the machete lodged in the skull, etc etc etc), and the complaints are "how does the tiger know who is good or bad", "how do the bullets never hit the good guys".... . . .
I'm not sure I understand pointing out another bit of silliness from this year's episodes to make the point you've tried to make. Yes, the things you thought were silly to complain about and the thing you just mentioned are reasons why viewers who had been fans are losing interest. If you think it should have happened quicker, you're getting a glimpse at how viewers don't immediately turn away from a show they've been watching for years. It takes a little time. All you need to do is watch the viewership continue to wane to know it's happening.