Differences between English and Japanese MSQ Dialogue (bit of a rant)

[Rosenstrauch]

Well what would be a reason to remove a complete sentence and replace it with "Hmph" to begin with in case with Estinien?

Without more information I can only guess, but perhaps the localization team found it redundant to have Estinien remark on the status of the guards they'd run into twice in two consecutive lines.