Proportional Representation is more representative of the will of the people as it represents 95% of the vote. People deserve better than the two establishment parties.
Causation can be neither proven nor disproven with so few data points, especially since there's a lot of other correlations going on. For example, the high tuition WTA countries are also mostly former parts of the British Empire, with Britain having a somewhat different history of higher education and democracy than continental Europe, who takes up all of the spots on the Free Tuition side. So the cause might just be inheriting s particular system from Britain.