There is no way this ending can be considered "predictable." For that, it would have had to have the usual happy ending, and no kids allowed to die approach that every single zombie video game up until this point has avoided.
Let's compare Sherry Birkin's fate to Clementine's. Yeah, Sherry lost her parents but she still had Leon and Claire at the end of the day, and she grew up. Clem loses her sole protector in a world that isn't ever going to be saved (if we go by Kirkman's words) and is left all alone where she can and most likely will be killed, murdered or even worse.
This is The Walking Dead. There are no happy endings. So, yes I cried...especially with how realistic everything turned out. Your one hope is left ambiguous...at best. The ending just feels so uncertain.