I'm all for clever localization but please don't just leave out important story.

[Renik]

There are many ways to interpret that JP line,and some of those ways does correspond with the EN line, one being Midardsormr could be thinking out loud about an earlier discussion or promise to Hydaelyn, where she asks him to grant her chosen champion power. Of course this speculation is taken fully out of the context of the entire discussion using only the lines you considered worthy of showing and therefor is inherently less reliable then speculation made in relation to the full context of the dialog (well monologue because WoL don't talk in a way the player can hear)

JP: This light... You protect him! Hydaelyn, you bestow more power on this one, who already bears the Echo!
EN: Hmph. Trickery is they shield. This frail, ignoble creature is not gifted, but chosen...

Here you have the rest of the text where he seems to be talking to Hydaelyn, in the first he talks to Hydaelyn, we can't know if she is listening or not, as you said this is just speculation until we can advance in the story, but EN text just implies how Midgar notices Hydaelyn's intentions in our power.

Also i have took the sentences from Zantitrach's post, who disagrees with me, i have not been tricky or tried to hide anything, you can check the whole text in the previous page (depending on your forum settings).