Yes, to his credit, Musk did note how ridiculous the size of the TFR is.
Even if all that airspace is 'required'.... as determined by current standards for such flights.
As more and more people want to use the NAS for new or novel things (drones, spaceships, whatever else may soon appear in this category) we are going to be faced with decisions as a nation.
Restriction of our existing (flight) freedoms to accommodate these new users, or limitations on the ever growing number and size of TFRs and other SUA.
NAS national airspace system
TFR temporary flight restrictions (even if they are in actuality, permanent flight restrictions)
SUA special use airspace