I remember supporters having a go at Caballero, back in the day, but his penalty saves won us a trophy.
Ok, Steffen made a careless error but don't hang him for it.
Their first goal should have been scrutinised by var. Steffen, from his position, saw the flight of the ball from the corner and imo he believed it had gone out of play, his belief reinforced by one of our players (Bernardo?) raising his arm trying to draw the referees' attention to the fact. This would explain his lack of commitment to try and make a save. Steffen would also have been aware of the foul (heavy push) on Grealish. Either of these incidents could/should have resulted in their first goal being disallowed.
Jesus and Sterling both missed good chances too, so have a go at Zack if you must, but it wasn't all down to him that we lost.
As for the supporters who made the effort to get to Wembley for the match take pride in the fact that you were part of the occasion and the result, whilst disappointing, wasn't the end of the world really.
How many supporters of other clubs would have given their right arms to have seen their team play at Wembley, win or lose?