ΔE 27.3, loose: different enough that you should pick on purpose. Goblinoid Green is much more muted than Moot Green.
Can I use Goblinoid Green instead of Moot Green?
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Goblinoid Green is much more muted than Moot Green.
Can I use Moot Green instead of Goblinoid Green?
The same difference applies the other way round: Moot Green is much more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.