Complex sentence: The event became the biggest-grossing pay-per-view in WCW history, but despite its success the card is seen as pivotal to the downfall of WCW, as it set a tone for backstage dissension and poor creative decisions going forward.
Split into simpler sentences: The event became the biggest-grossing pay-per-view in WCW history. Despite its success, however, the card is seen as pivotal to the downfall of WCW, as it set a tone for backstage dissension and poor creative decisions going forward.