That seems to be reasonable to use SimShaker for Aviators by f4l0 freeware in case of DCS, there is just no other software to make that job.
I believe Realteus had no bad intentions. I suggest you expected some other stuff from Realteus, as well as they did, but in any business something could go wrong. Could you please try to be forbearing to a small-business guys?
“You don’t learn to walk by following rules. You learn by doing, and by falling over.” – Richard Branson