I agree. At minimum, these kind of decisions should require 50% of all eligible voters to to agree, not only 50% of those who cast their votes, or alternatively 2/3rds of the cast votes. Also, this kind of decision could require some kind of multi part vote. I wonder, how the results were, if they had to cast a vote again in a few days.

Here in Germany, we have a strict representative democracy. But we have regional elections often enough, that the government gets to feel, if voters no longer agree with it. So it is a balance between short term popularity a long term considerations.