This issue is inherent in the way machine translation works. Short sentences and single words are exceptionally difficult for the matrix to translate accurately. And introducing capitalization differences just adds another variable. So I don't know that the team will be able to fix this issue.
That said, I would suggest that you post the issue to the Google Translate Developer's Forum. I can't say it has a tremendous chance of getting a response, but it has probably a better chance of being seen by the development team than this group.
jg