Complex sentence: Graver than the economic distress that the Contemplacion case presented was the reality it symbolized for the Filipinos: it was the final blow to what had been a long struggle with abuse received by Filipino migrant workers in their host countries.
Split into simpler sentences: Graver than the economic distress caused by the Contemplacion case, was the reality it symbolized for the Filipinos. It was the final blow in a long struggle against the abuse suffered by Filipino migrant workers in their host countries.