[Phemist]

I guess the Uber case is similar in ways but also quite different.

Uber was (relatively) vocal about their hope for regulation to catch up with this new world of taxi gigs ordered through an app.

And in the MS browser-choice case, the regulation was specifically designed for Microsoft and they had been found to be non-compliant once already.

How does that change the calculus? Clearly, not enough.

[Libcat99]

They were hopeful of regulations "catching up" because it hurts future competition. If new regs hit the books after uber has already enjoyed their growth, it's a lot harder for someone else to break in.