The same thing as every modern engine. They don't care about the longevity but the minor change in measured consumption. Everything is over-optimised to the edge without any margin and they just don't care anything beyond 100 tkm. This is an easy fix as the oil pressure on petrol engines is regulated by solenoid so the pump itself has the potential power to deliver more. A different thing with diesel engines where the pump itself determines the oil pressure. M50d oil pump produces more pressure on low revs but that involves a lot more than a change in mapping.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey