It's possible that some companies don't discuss and draw lines between tributes, reissues, updates and end up confusing what are supposed to be already strong product lines.
For Rolex, it was indeed a tall order to build on what are essentially successful lines. I'm almost of the opinion that they could've probably coasted on the current lines for a couple more decades as long as quality was maintained and innovation on tech/materials for the movement and accuracy and overall performance were periodically injected. For what are already bulletproof watches, a strong marketing platform/strategy may have been enough.
That is why I like the Milgauss. Sure it was already in their stable before but it has not been around for decades. So it was easy to resurrect and play around with this line. It would've been an ideal playground for Rolex, in a sense. Maybe it is not as successful but it has nothing to do with being a "disappointing" update. If they carefully took off from the earlier Milgauss, they may have had a more successful introduction.
For the current sports lines, maybe it would have made more sense to expand the lines rather than update them?
In a world that changes SO much, Rolex classic designs are safehavens that can coexist with "out there" creations. And in that alone, I think that they already have a strong market to protect.
But definitely not go with "easy solutions" as you aptly described.
As for the new white dial, not sure how it will fare against the test of time. Those big indices remind me of Tag Kirium's dial design. Go figure.