There is no problem or contraindication. As in any installation, periodic review protocols appropriate to the frequency of use and corrosive potential must be followed.
The main feature of this type of Belay Station is that, when properly installed, only the lower anchor point works, the upper anchor serving as a redundant safety point in the event that the lower anchor fails. The mechanical strain and fatigue would fall on the lower point, keeping the upper anchor without any fatigue. In hard rock and in areas without high fatigue load, that would be for example the best option