There are so many factors involved. The cross could be turned into a great cross by the movement and understanding of teammates. How many times have we seen a cross put in and nobody goes for it. A good cross for me is putting it into an area of danger and uncertainty. If it drops over the shoulder onto our strikers foot it's fantastic but how many times do you see that ?
I prefer Tripps putting in diagonal balls , it seems to create more uncertainty and provoke mistakes.
Will the cross draw the keeper out or force him to stay back? Disguise on trajectory, a dipper, an outwsinger or inswinger. Delivered with pace or a floater.
If a cross goes into the box and troubles the defence and our attackers have a chance of getting on the end of it then it's acceptable I guess. If it hits the first man or is overhit it's not acceptable. But we see it very often in the game, not just our players.
Which is why I made the point it can't be as easy as some think. For most players that is. Hoddle and Beckham it seemed to come easy buy how often do players like that come along. Actually Harry Kane can cross a ball if he don't want to shoot. !!