It is a matter of magnitude though. How short are you? I am 2SD below the mean and trust me that rules you out very much IRL too.

But I agree that women are obviously filtering on that.

As an anecdote - one site I was on took a while to publish my height and I started having conversations with women. As soon as it showed one dropped contact and the other said she felt 'no chemistry' after we had basically said hello to each other :)