All these updates are basically small updates - more or less, few bigger ones, but they all have sense only if they are regular and to me a 3 month or a 6 month update, unless it's a planned that way because it makes sense (because of creative and business model or team is small or team is doing other projects also), is not a regular update in this case - perhaps in others it is - but a contingency that wasn't planned.
And who ever tells that updates of 3 months apart are an ok thing for this project is mugging about. No chapter 3 if something doesn't change. I don't think it needs to change straight away, but it needs to change.