The new literalism plaguing today’s movies

Eh, People on their phones can’t be bothered with following plot lines everything has to be telegraphed

I am confused by the use of the term, telegraphed or signpost. I am not even sure I understand what this literalism is about.

Coming from a martial art background, telegraph means reading the subtle signs that comes before an action in order to anticipate, intercept, and counter it within the same tempo. It can also mean exaggeration of the signs, letting slip one’s intentions as an error in execution, or deceiving someone by falsely telegraphing intentions. They all come before the action, whereas the examples in this article seems to talk about things coming after the action.

"Telegraph" is a bit of an unfortunate word because when used metaphorically it has come to have two almost diametrically opposed meanings. I think that's what's tripping you up.