I'm not so sure. Russia has been acting in bad faith all along, denying they have had forces deployed within Ukraine and pretending they are impartial in the whole affair. The Minsk protocol had Ukraine negotiating under duress and the decentralization measures look like a step in the eventual absorption of the Donetsk and Luhansk Oblasts into Russia, by stealth. I think it was doomed from the start.
Of course, when Russia's expresses concern over their own security, what remains unsaid is that Ukraine's security comes a distant second.