The "moderator" has locked the thread and threatened a ban, so they don't want to hear about Poet anymore.
It just shows the barriers that Poet has to overcome to get the industry to listen. This is why the RO and VCSEL milestones are so critical. Unproven will then become proven.
And the cost argument the author is rebutting is silly. Every new technology is always more costly than its predecessors, in the beginning.