As part of that, the Echo doesn't 'tell' you about telegraphs and AoE fields.... as the devil is always, in the detail. We have ability telegraphs and AoE fields on screen for pretty much
everything, even for things that
have no souls/aether like boulders and machina which if it really
was the Echo telling you that, it would only be able to work with something that has a soul. As inanimate objects/non living entities with no aether/souls also give ability telepgraphs/AoEs, therefore it's
not the Echo showing that. It's just a gameplay mechanic with no bearing on the story. The
whole game visual interface is just for gameplay purposes, nothing more.