Desperate for Henderson to be the best goalkeeper in the world, not to criticize him.
It wasn't easy but if he was on the edge of the area awake and anticipating it there's a good chance he would have got there. If not he may have been able to nip the ball off Anderson for a poor touch, as he should have done with the Watford goal.
It was a really bad miss by Anderson and Henderson got away with it. That's not to say that Egan shouldn't take some responsibility as well.
In any event it's the third time this situation has occurred since Christmas so needs addressing. Don't mind mistakes, as long as we learn from them and don't repeat, regardless of our level.