It seems like you're talking about predictions, but the point of "reliable sports scores or political information" is about a trusted source about past/current facts.
People have no problem verifying the bet results of yesterday's game or last year's elections. However, making a blockchain that can't possibly be manipulated into thinking that Clinton won the election (no pitchforks needed, you're misleading a single automated system, not everyone else) is actually much harder than it seems - especially if the decisions are enforced by the system, final and irreversible and can't be overruled by courts if it's found to be fraudulent afterwards.
People have no problem verifying the bet results of yesterday's game or last year's elections. However, making a blockchain that can't possibly be manipulated into thinking that Clinton won the election (no pitchforks needed, you're misleading a single automated system, not everyone else) is actually much harder than it seems - especially if the decisions are enforced by the system, final and irreversible and can't be overruled by courts if it's found to be fraudulent afterwards.