This was mostly fight between two groups of union in one company. New union wanted to show off their power, so they pushed hard for strike. Outcome was laughable for anyone who remotely understands how percentages works. They announced that they got their 14% raise and presented it as great victory. But it was achieved just by adding one extra year to agreement - so instead of cca 4,7% increase in first year and 4,7% increase in second, they also got promise for 4,1% increase in third year. Before strike, they got very similar offer without that third year, but 14% sure looks much better than 8.9%.