Rather than remove it, they should have just re-added the color shading...
First level teraformalble spots are shaded light blue
2nd level = teal
3rd level = green
4th level = yellow
5th level orange
max level = red
the Altarians should have been given a few things like the biosphere manipulator that would terriform any three or four adjacent tiles... any tiles.. this would probably in the end be more powerful than the ultra....