There is no RG gacha because of the new special 6*. They did the same thing when Memories came out for the first time.
RG Money Tree really lacks the 4 colors or Skill act but it was sure she would'nt get it. I'm not even sure we have a 4 colors RG right now. They are only natural 6*.
I forgot Money Tree has 720 speed. It's good to balance slow girls like Silk Tree.