Everyone can give their opinion on UX choices, this is something higher up can discuss at lenght. It is much more involving to discuss engineering topics and the time scale is different. Overhall it is easier for designers to develop accointance with top management (as compared with engineers). Engineers would love to do what designers do: propose massive changes every years. They don't for engineering reasons.

Is there such a thing as design continuity? or granular design change?