I wasn't shocked by this article, because I have twitter, where party activists people like Polly let their innermost contempt spill all the time. It's just the first time I saw it printed in the Guardian.
I have come to understand that today's professional Labour/Labour-adjacent types is no longer think it is their job to represent and serve the working classes in government.
Instead, they think it is the working classes' job to vote for Labour so that Labour politicians can fulfil their career ambitions. Labour is apparently entitled to the votes of people earning less than x per annum.
People like Polly don't see it as Labour's duty to persuade the electorate. The electorate are just an obstacle in the way of party members' hopes and dreams. That's why Polly would rather have a (male, natch) Labour government than female suffrage.