Hello,
I can confirm that the developers do indeed know about this bad translation in the ninja test. And they HAVE been working on this. We used to have something like...perhaps 30 or more German questions in the ninja test that have been removed. For some reason these two keep slipping through the cracks. Ultimately, it comes down to task prioritization. Your tickets are not being ignored, but the devs consider this issue a fairly low priority, unfortunately, compared to more game breaking issues or dealing with the GDPR update, which was government mandated. As for not seeing changes, we've seen a ton of changes in the past few weeks. Just look at the events and how much they've improved. People have been asking for white tiger and lightning tiger king scrolls to be available for ages, for MGM to have power items again, for SSP and ETR Madara to be available in fuku/as redeemables, for an update to refine rebate (that one missed the mark a bit, I'll admit, but it did get updated, and the devs are listening), and update to charm rebate, the list goes on and on. The devs are listening and they are making improvements.

As for these two questions, I apologize that they keep slipping through the cracks. I will submit them again for you and hopefully sometime soon they can get fixed.
Thanks again for bearing with us.