The part where he states that factory is shut down this week is not obvious...
I doubt that you missed this part of his post, so it seems that the fact that you are not dismissing this statement might be indicate that the factory is indeed curently shut down...
..Or I might be trying to read too much between the lines here?? (Which is shocking for any thread dealing with the Model X production prognostication)
There are many people on this forum that have posted that Tesla employees told them that the factory tours will not be available this week and next week, so that corroborates the OP story. Nothing really new here. And I agree with Bonnie that this is obvious. Furthermore, "high gear" is a very subjective term and does not (in any way) indicate the Model-X production level. It can simply mean that they will finally be building some Model-X vehicles.
Nothing more to see here...move along...