[tyingq]

Two main areas.

It prepares you, in terms of financial visibility, experience, etc, if the most painful of anti-trust remedies (breakup) ever happens. AT&T, for example, would have likely proposed different terms for their breakup if they had better visibility into how Western Electric would have performed on its own.

It provides more public financial visibility into some areas of concern, early. For example, it looks like Google fiber isn't staying with Google. Google fiber is probably a concern for at least US anti-trust regulators.

[sangnoir]

The new structure won't affect the EU's investigations, as you had stated earlier. All the components the EU will whine about are still under the Google subsidiary (Search, Maps, YouTube, Android).

The only companies exiting from Googles purview are Calico, Nest, Fiber, Ventures, Capital,and X. None of which were likely candidates for antitrust prosecution.

[tyingq]

It's chess, not checkers. One move at a time. Also, minor, but Fiber would be an interest point for anti-trust, just not in the EU.