Not originally, which is my point - for FFXI's first five years of service in fact, you could not invite anyone into your Moghouse, the ability to do so was only added in an update in 2007 (the November 19 2007 update specifically, which is nearly ten years to the day in fact). I couldn't find any archive on the FFXI website about it, but the FFXIcylopedia
updates archive does list a copy and paste of the original FFXI page.
So either way, my point still stands, FFXI's Moghouses were far more restrictive than they were made out to be and only had one of their restrictions lessened many years after it's launch, and are not necessarily a better system than FFXIV's current housing system.