Because with all of the girls would be impossible to bring all gifts to them since only less girls like I said 10 girls should clearly be enough for Dead or Alive Xtreme 3.
Your reasoning makes no sense. I don't get how adding in 6 more girls will make gifting any more difficult. Besides, more girls=more swimsuits=more DLC.
Just because Lei is the only one you want added in doesnt mean that the other girls should be ignored. It's only fair that all the girls be featured. Sure, besides Lei, the other girls excluded are all westerners and its clear the Japanese aren't interested in them but there are still those that do.
Basically what I'm saying is that more characters will make the game more appealing to more people who will want to buy the game. I personally have said many times before that I would only ever buy the game if it featured
all the girls, not just my mains.
Also remember that when it comes to the main fighting games, TN have shown that they want to add in as many characters as possible, including characters that were in the games before and time and resources are the only things that prevent that from happening. The same thing happened with doax3, I believe that TN have said that they would have added all 15 girls to the game but they didnt have the resources and time to make that possible. The game has been out for several months now and at this point, if they wanted to, it's just a case of adding in the other girls onto what they already have.
Overall though, I don't really see them adding anything other than dlc costumes at this point since I get the impression that they don't really care about doax3 and would rather focus their time on other games
