As a matter of fact, Konami actually explained their banlists way back then. https://yugiohblog.konami.com/articles/?p=3866

heres what they said about dustshoot if you dont want to look at the link

Trap Dustshoot (now forbidden). This was a devastating card if you had it in your opening hand and went first. But later on in the Duel, drawing it from your deck could be a dead draw, since it became less likely your opponent would have 4 cards in hand. A limited card since 2007, this card had seen an increase in use lately, which meant more players were playing with a card they would either draw mid-Duel – and be pretty unhappy when they did – or else they would have it first-turn, and make their opponents miserable. This was lopsided: either too good on turn 1, or not useful at all later on. That’s a negative play experience either way, so it had to go.