I read "...assaying and receipt of assay results is in progress"...

I read  "...assaying and receipt of assay results is in progress" to mean that they had already received results hence would have sent prior to  Mar 15. ie Sent progressively.
Would imagine that review wouldn't be done too quickly as some are intimating ie) ~10000m ? so to put into perspective...really 12 weeks from Dec till end of Mar taking into account transit/ Xmas New year vacations so back to work after perhaps 4 weeks in total  makes 8 weeks..not long at all really
Long stretch to say only sent all off in one hit...only in March.
Would they report on there work progressively to Azure for release to market or would they wait till all completed..most probably in my mind.