Possibly. It's not entirely clear what is and is not going mail order for DW from just that post...it sounds like to me that all the factions will still be available in their fleet box form, but things like the Bombardment Groups won't be. So, for a hypothetical extension of his policy to FSA, all of the patrol fleet boxes would be available for all the factions, but things like the destroyer groups or dreadnought groups wouldn't be.
Hopefully this will help distributors handle SG product better; I've had more than one store tell me they don't stock Spartan because the "distributor doesn't carry it" or some variation there of.