They really are not. Instead, they were friends with the human rights movement and anti-stalinist organisations in Russia (e.g. Мемориал), which got gutted by Putin. So naturally they are not happy.
I would guess because Russia has shown itself to be a bad actor over and over? They kill/imprison people just for being gay. Imagine what they do to dissidents and those who don't "go with the Russian flow". Dealing with Russia of today is dealing with the devil.