The proposed method doesn't need months. Majority of nemsters are waiting for the launch, so they will read an announcement and install the software. The rest will take a week. Why do you think about months here?
roughly 1400 people have to have their client running at the same time. That's like waiting for some special stellar constellation
Not to mention that a huge chunk of stakeholders only drop by once a month so it would have to be at least 1 month after the announcement which even if the announcement was made right now would be later than what we hope to be launch.