Unlike every other black woman, she can leave Earth at any time
We actually don't know that.
As for Ten-Forward: I agree. It makes sense for the bar on the Enterprise to have that name, because it's on the forward section of deck 10. Having the bar in LA on a street with that name does sound kinda awkward.
Although I suppose Guinan could have indeed asked for the Ent-D's bar to be put in that location even before she herself arrived there. She may have taken a look at the deck plans, noticed that there was free space on deck 10, and thought, hell, why not.
