Millions of people wiped out.
3600 Paraagan colonists were killed.
Guy Gardener wrote:
Blowing up that colony would have stopped the Xindi. The Federation would no longer be a threat and Enterprise would have been close enough to Earth to repel the probe if it had been launched, which it wouldn't have been.
I Agree with this.
Archer as future guy makes sense, and would have been an epic twist. We know from IAMD that archer would eventually become president of earth - but then after that he would travel to the future and create the Cabal? CRAZY!