I can't say I'm really surprised. Yes campaign was poor because nobody could really get excited about AV. Supporters of PR, as I am, where placing pictures of Nick Clegg on the dartboard when details of his soul selling.... I mean negotiations with DC were revealed.
The slim chance of seeing PR in Westminster changed some months ago to nil chance in my lifetime.
I remember when the election process for the Scottish parliament was announced the political experts at the time insisted that it was very unlikely that a party would form a majority administration...... or was it unlikely that Labour would form a majority administration.