All due respect, you need to stop thinking like a player/coach and making up your own interpretations "to better the ref process".As a very qualified coach ex semi pro defender and now well meaning trying to always do better ref the process is D deny space, D delay D dictate D depth and the defender are hitting d's because they 100% are not off to the goal line!! The keeper is denying space and attempting to dictate where he wants to the attacker to be. The defender shifts his is d's in relation to the keepers, and where the attacker is going with the ball to move the foward away from goal. He provide depth to the keeper by not dropping to the goal line and both defender and gk are trying to take the attacker away from goal.
The laws are clear what the considerations are, you're not in a position (e.g. national referee manager / IFAB board member) to be doing that.