They can't give us Galaxy 2 because Yoshi demands a Wiimote for the mechanic to work at an acceptable level for a Nintendo game and not like some janky emulator shit, especially because you need to chain grabs with his tongue to cross gaps. Meanwhile, 3D Land was designed around the 3D feature in terms of camera angles and level design (they had jumps they expected you to have 3D depth perception) which is completely missing.
These issues are probably why they haven't already ported these games. If they can ever sort these issues with future hardware equipped with 3D or Wii-pointer-like precision, they'll show up in like a second.