There are books to be written on the national psychodrama of the sandpaper incident, why it became so overblown.
I love Australia. I live in Australia and this country has been very good to me. So I say this knowing some people will not like my view of it.
There’s a general assumption across Australian culture, sometimes voiced openly but more often just a background understanding, that its sportspeople win by playing fair and criticism of how they play, or the things some of them do to win, is motivated by jealousy.
In other cases where Australian teams have done something unethical or controversial, there is always some ambiguity about what happened which means this general assumption can be maintained. Even underarm was within the rules at the time.
But in this case, there was no ambiguity. Everyone knew it was wrong. Aussie cricketers cheated. Yes, you can rationalise the reason why they did it and there were other factors involved, such as crowd behaviour, Smith's mental state, Warner's righteous anger, Bancroft's desire to please the older boys. But that can’t change the essential point, that they were caught cheating for everyone to see. That’s why the reaction was so extreme.
Since it happened Cricket Australia have completely botched how they’ve dealt with it and that’s just made it worse.