Eze and Sarr were the headline double act as Palace continued their quest for that elusive first FA Cup triumph – but this was a consummate team effort from back to front.
And it is a tribute to manager Glasner that Palace can play with defensive solidity but also an attacking freedom that encourages the brilliant 'X factor' moments that illuminated the quarter-final win at Fulham and here again.
England coach Thomas Tuchel is known to be an admirer of Palace's Henderson, and while the goalkeeper may not yet be in a position to challenge long-time first choice Jordan Pickford, this Wembley performance was that of someone reaching full maturity in a high-pressure environment.
In defence, the composure of captain Marc Guehi and Maxence Lacroix ensured Palace were never under sustained pressure, while Adam Wharton brought measure and creation to midfield.
It is in attack, however, where Palace have a genuinely thrilling edge to their play, led by Eze, lavishly talented and a game-changer. Villa were punished ruthlessly.
After Eze set Palace on their way, they showed real character to recover from the disappointment of Mateta's missed penalty.
In the end, they ran out comfortable winners thanks to the contrasting goals from Sarr, the first an arrowed strike from distance followed by the second which combined his pace, skill and composure.
Palace fans celebrated noisily and justifiably. On this evidence they will provide a serious threat to either City or Forest in the final here on 17 May.