The size of the QB's hands had much less to do with the outcome of that game than the weather. You really had to watch it. The Bengals linemen came out in short sleeves ready to do battle while the Chargers were shivering. Ken Anderson was one of the very good bad weather QBs and it had little to do with the size of his hands.
It's not something the Bengals engineered and that's the point. It was something the weather engineered.
As for the Bucs, if weather wasn't a concern then why was their record different in northern cities? If I'm a Bengal fan I want the Bucs in Cincinnati in December as opposed to playing in TB in Sept