

Yes.
Corrupt as it was, it still maintained some degree of independence. It does no longer.
Think of it as something akin to the difference between the period when two separate corporations were part of a cartel in which the larger of the two was by far the dominant partner, and the situation after the larger one has bought out the smaller, fired the entire C-suite and most of the employees and sold off most of the company assets.
Of course.
Readiness is just an excuse. The explicit goal is to undermine Ukraine for the benefit of Russia. It’s not a coincidence that this came immediately on the heels of a one hour phone call between Trump and Putin.