Oh, sorry, misuse of term there. I always thought a cameo was a general reference to something unrelated partially or completely.
Quote from TheGreenManalishi:
And it makes sense that when Samus hooks up with the feds (Corruption) they'd then ask her to go and commit speciocide on SR388.
Not that much sense, because from Prime`s point of view metroids are only a minor threat. Phazon and space pirates create much more trouble.
So why not eliminating the remains of the pirates instead of cleaning a lonely planet from an unknown lifeform that anyway cannot leave it on its own?
Now coming from M1, if metroids are the big issue, why the GF send Samus to investiagte the friagte above Tallon IV (some other troops would de), instead of immediatley sending her to SR388 to eradicate all remaining metroids?
Direct connection or not, the subplot needs something to hook up to the main plot and therefore interferes with it.
But if it`s necessary to get more kick-ass games, so be it. I`m pragmatic after all.