If I can burn it into the minds of those against the R/S remakes one last time...... SOUL. DEW.
Now I am finished with that.
Three letters for that:
Clearly didn't need a Lati@s associated event to get that item early in Gen IV even disregarding transferring. The Dream World has artwork for it so there's another venue of distribution for Gen V. HgSs showed they didn't need to be associated with the Hoenn region so any Wii game can get people the Lati@s.
The item itself wasn't even widely available in Gen III >_>