Not that it's necessarily the case here, but people might not want to correct errors before someone publishes their piece- if the errors stay in, you can write

Not that it's necessarily the case here, but people might not want to correct errors before someone publishes their piece- if the errors stay in, you can write a rebuttal that focuses on those errors and ignores other points which are harder to rebuke. If you're interested in winning an argument in public debate, then giving your opposition the chance to see your first rebuttal before they've publish their first attack is a huge, huge handicap.