"It shows the EU works like a true democracy."
The EU is not and was never anything democratic. If it were, the summer and wintertime foolishness would already have been ended. Another proof of this is the non existant "powers" of the not really directly elected parliament and the overpowering influence of the not at all elected EU commission.
That some judges are sometimes able to make a correct decision is unquestioned, same with the effort of german government to tear down the pseudo protection of work time law a few years ago that was also prohibited in EU court.
A few judiciary positive events dont make anything democratic.