Let's not forget that the people actually responsible here (Briatore and Symonds) have been banned for life and five years, respectively. It's not like everyone's escaped punishment.
And whilst Piquet Jr. might have gotten immunity from any actual banning, none of the teams are going to want to go anywhere near him, and not just because he's a terrible driver. His name is inescapably tarnished now.
Those at fault were punished. Renault, for letting three people conspire incredibly well (if you read the details, I don't see how any team could have caught them during or before the race, it was simple plan, executed perfectly, and with the fewest people involved as possible), get a punishment befitting their role.
And whilst Piquet Jr. might have gotten immunity from any actual banning, none of the teams are going to want to go anywhere near him, and not just because he's a terrible driver. His name is inescapably tarnished now.
Those at fault were punished. Renault, for letting three people conspire incredibly well (if you read the details, I don't see how any team could have caught them during or before the race, it was simple plan, executed perfectly, and with the fewest people involved as possible), get a punishment befitting their role.