It doesn't really matter if it's paid for by the state, corporate tax, or income tax, in the ed it all amounts to the same thing. What matters is that it's a collective arrangement, not something any individual company is on the hook for. That is what sets it apart from most of the rest of the EU.
In the Netherlands, there's a rule that an injured employee will receive 70% of their wages for up to 2 years. But it's payable by their employer - whether the employee got hurt at work, or on the ski slope or whatever. Why is that bad? Large corporations simply self-insure against this risk: the numbers even out close to the average in larger groups. But if you only have 5 employees, you can absolutely not afford to run the risk of losing an employee for 2 years while still having to pay him, so you have to take out very expensive party insurance against that. Labour laws that offer good unemployment benefits and retraining on the employer's dime suffer from similar problems, that's what this article is about. Better to carry these risks collectively.