In every election ever made that has ended with a slim margin, people will reflect backwards and wished that they had been better informed or made more aware about the vote. Its kind of human behavior to wish that you could go back in time in order to do a small change and have a large impact, but so long there is statistically significant amount of voters, for everyone person that would go back and vote apache there would be an 1.06 of AGPLv3 voters that would also have not been as aware about the voting and would have voted AGPLv3.

That said, 16.5% voting participation is a bit on the low end. My guess is that it mostly reflect those who reads the Mailpile blog, are active in the development, or are active in places like HN/conferences where news about the vote has been announced several times.