Poland's judicial independence comes in at 99th in the 2018 World Economic Forum tables, below Swaziland, Mali and Zambia. Nigeria is at 82. Poland's judicial system, like all those in Napoleonic law nations, is deeply politicised - the reason that Poland has over 4,000 cyclists in prison is not for any great breach in natural or moral law.
However, only very few nations in Europe - the UK and the Netherlands amongst them - can criticise. Italy is not far from Nigeria, neither is Spain. Turkey, at 103rd place, receives hundreds of millions of Euros in bribe money from the EU to keep Syrian migrants within Turkish borders, despite draconian restrictions on press freedom, tens of thousands of political prisoners in detention and a growing number of unexplained deaths in custody of military officers. EU officials are not driven by human rights abuses, clearly, in their actions against Poland. The EU's excuse for action, Poland's changes to judicial appointments, are a smokescreen to disguise the use of the Brussels knout to bludgeon a disobedient vassal state into line.
If this action was really aimed at improving judicial independence, then Latvia, Slovenia, Greece and Italy would be next in line for EU sanctions. they're not. Their courts can be as corrupt as they can be without fear, because they obey Brussels. And that's the reality about the utterly crooked, despotic regime that we're desperately trying to leave.