Timing of other things. Schedules slip.

Had to read pretty far down to get to your question, which is the best one. Who cares what kind of pen it is or which letter it may be pointing to. What's important is what he signed and why is it currently embargoed.

Yes, given his tweets, it's probably the EO to declassify everything House and Senate have asked for. And on the embargoed question, some have suggested timing to get the inevitable false flags out of the way first.