The following Planetouched races, unless otherwise noted, may be selected on-creation in the awards menu by any "base race": Human, Half-Elf, Half-Orc, Moon Elf, Lightfoot Halfling, Rock Gnome, or Shield Dwarf:
I understand this used to be the case as the other races were all mechanically subraces. However, that's no longer the case. Now, you can choose from any of the non-award races directly in the character screen.
With this in mind, it might encourage a little more variety if these were widened to any base race. It seems very odd that, for example, you can't have a Drow tiefling or a Gold Dwarf aasimar . This also puts the 'basic' races in a position of primacy that, depending on the area, they simply shouldn't have - seeing a dozen genesi humans in the Hub, but no Drow ones, does start to strain credulity at times.
Would it be mechanically doable to change these, something the DMs don't want to see, or is that just a case of Legacy Spaghetti?