The "goal/no goal technology"must be used, of course: what happened during England-Germany is an intolerable absurdity, to be absolutely avoided.
But I'd like to have a more professional demonstration of the questioned action.
For instance. The projection on horizontal surface of two lines:
1. the tangent to the sphere
2..the connection of the two extreme internal points of the goal-posts.
If there is "light" between the two lines, is "goal"; if not, is "no goal".
And all of it to be clearly elaborated, starting from the "eye" of the camera, placed in strategic position.
What I saw, last sunday, did not convince me about the accuracy of said image's elaboration.
Am I wrong?