Logically, I would agree with you guys, but technically, it is not specifically mentioned on the card.
On the card [mwcard=MW1E34]Reverse Attack[/mwcard] you have the phrase "The attack is avoided and then redirected..." which implies the need for the attack to be avoided first.
Later they even specifically mention: "If the attack is unavoidable, destroy reverse attack without effect"
Now on redirect:
"Redirect counts as a defence and must be revealed when this creature is attacked. That attack is avoided. The attacker receives 2 direct damage. Then, destroy Redirect."
There is a clear dot between the 2 effects, not implicating any link and afterwards there is no specification as with Reverse attack.
Thus: I think the attacker would still receive 2 damage as written now, but it was not meant to be like that.