In some countries the 2% votes to join different EU treaties and no one complained that 2% was to little to decided something that important. In most cases the people of the EU member countries was never even asked in they wanted to join the different treaties.
If the UK had voted to leave, with only a 2% margin, would you have complained that it was to little to determine something of this magnitude and called it ridiculous?
Regardless of the outcome, the EU needs to re-evaluate how it operates and if it needs to change drastically. I'm a fan of the idea of an EU, but in it's current form it's an almost unmitigated disaster and a role model for people wanting to circumvent democracy.