Well even if that is the case, mew, that really isn't a bad thing, considering all people have to do if they want a specific starting city, is choose a class linked to that city, then get a weapon of the class they want, switch, and there, they switched to class they prefer! They can still main the class they want, mew.
Final Fantasy XIV |OT| 2.0 Legacy is over - Page 354 - NeoGAF
And like some people in communities have been saying, lore wise, it makes sense classes like Marauders would start off in Limsa instead of Ul'dah or Gridania.
some people may think the starting class = starting city is a restriction, it really is not considering it will probably won't be long before they can equip a weapon for the class that prefer to main early on (if the class they start with was just used to start in the city they want). The region is connected anyway, so people just have to prioritize whether starting city or starting class is more important to them.