More precisely: the Lazarus distributions for Windows don't contain the textmode IDE; the *nix ones do.
They Windows ones probably will in future.
It was/is just a very old quirk in the build script that prevented it (no idea if by accident or intend).
And it seems (looking at the snapshot builds with 3.2beta) that quirk no longer acts on the textmode ide.
Besides, given the size of the installer, really makes no difference.