The fluid would need a more scientific analysis. As well as long term testing of the system as a total. Right now saying it's gonna fail early is just an assumption based on what appears to be dirty fluid. When it could be a non issue if the maint schedule is followed. That's why I asked what the interval is?
I trust the engineers that it's good for the job. When it actually fails or a scientific fluid test can show some problem then there is a basis for a mechanical issue outside normal maint.