Vieira, Ashley Cole, Ljungberg, Lauren and Van Persie all scored from the spot. Scholes was the one to miss for United. But that will not explain his comments about Wilshere, which were really about the whole Arsenal team, and Wenger's apparent belief in recent years that the rest of the Premier League should stand back and applaud his creativity.
Scholes said: "Arsenal players go missing [against top teams]. It seems they go out with no discipline. It's almost as if it's: 'Go on, you four, five midfielders, do what you want, try and score us a goal, a few little nice one-twos, a bit of tippy-tappy football. Don't bother running back.' There's no leaders."
A proponent of less is more in the speaking stakes, Scholes was articulating what people in the game say all the time. Yes, the drop in individual quality is indisputable (cue long discussion about the Emirates stadium and its effect on transfer budgets). The 2005 starting XI was vastly superior to the one that will take the field against Hull this weekend. It was: Lehmann, Lauren, Senderos, Kolo Toure, Ashley Cole; Pires, Fabregas, Vieira, Gilberto, Reyes; Bergkamp (Henry was injured). The names, we know about, but the idea also changed dramatically, so that Arsenal embraced a style of play that was all the rage with Barcelona's dominance but is now being challenged by greater tactical variation and more directness all over Europe.
So the nine-year wait is not the only thing Arsenal need to put to bed at Wembley. Since that day in Cardiff, they have reached a Champions League final (2006) and finished fourth five times and third on four occasions.
This is high-class treading water, or elegant stagnation. It is a long way from being catastrophic but is also short of satisfactory. Arsenal fans, of course, just want to go to Wembley and have some fun. They want to put the past nine years aside, forget about soaring ticket prices and not think about why Wenger has not signed his contract, despite saying it was there on the table to sign (can nobody find a pen?). Lurking, though, is the fear that beating Hull in the final of the third most important competition will persuade the board that nothing needs to change and that Wenger can go on writing his own manifesto forever.
Defeat would revive the sense of an ending that stalked the club with the 6-0 defeat at Chelsea in Wenger's 1000th game. Victory would not alter the reality that Arsenal cannot travel to Chelsea, Manchester City or Liverpool next season with the mindset Scholes describes. Top-four opponents are not traffic cones. They are monsters who know how to disrupt Arsenal's sometimes flimsy style and how to impose their own.
The end of the Wenger years is not here yet, he says, but the end of the pursuit of hollow beauty surely is.
A different type of player, new tactics and renewed respect for the opposition are all required from August on. The next Roy Keane needs to ache again in trepidation at the thought of standing before the Gunners.