Though I am also suspicious, anything other than a “drip, drip, drip” approach could still risk panic and a market crash.
“Panic and market crash” was the doctrine from the Brookings Report in 1960.
https://en.wikipedia.org/wiki/Brookings_Report
It is obviously very dated—and its conclusions are highly debatable.
At this point it is just a lame excuse for continuing secrecy and coverups.