Discussions, post-mortems, analysis, inflated egos, and all that jazz.

a language law passed the day after Yanukovych was overthrown

That's exactly it – the goal is to create conflict. The "Euro-integrators" understood that a high percentage of people loyal to Russia would not allow them freedom of action, so they decided to immediately put all the dots on the i's. Now Russia is the "aggressor," and any deviation from the party line is suppressed by activist-patriots.
They also readily gave up Crimea, as it had a pro-Russian electorate.