Why would you think it's dual notice? It's purely the notice required to obtain a settlement of the class action. The blocking agreement requires notice to the company, not shareholders.
Now that LP has more authorized she can submit a letter to herself changing the 60 day window so it doesn't matter, as per Ex. UNLESS a financier is stopping her from doing so. But even then there's a thirty day window between the 60 days and the 90 day q filings.