Johny: This is just a question about why would they hide the completion of milestones from investors
I can think of only two reasons they would not announce the status of the milestones.
1. They have NOT been completed yet
or more likely
2. The revised milestones were at the request of a multi-billion dollar potential Customer/Investor/ Acquirer and that company insists on SILENCE until they have a completed deal with POET.
I look forward to other possible reasons.