"For me there is only one remaining plausible explanation,...

"For me there is only one remaining plausible explanation, arrogance and delusions of grandeur."

I believe it's been to suppress the SP so David could attain more equity in the company. ~50% of his package is equity in the company.
The lower the SP, the better for him.

"no news is good news" has worked very well, for him

Hopefully he'll be happy with this latest round of equity and he'll release the hand-brake on the marketing blackout

Which reminds me, I most vote NO to pretty much everything before voting cut-off