Think about how this would work in practice, You are running around trying to find a lane, just as you think you have one near the side line you see a guy coming for you. Now under your rule, to avoid a penalty, I would have to start going down on a knee, which when you are running is a hard thing to do. My guess is you would get a lot of people hit on their way down and injured with this type of rule or not even bother trying to see if a lane might come open!
Frankly I think you would find that your rule would make the game more boring.
I don’t follow your logic. If I’m trying to get out of the endzone I’m trying to avoid tackles and run through people. Why would I chicken out at the last second and take a knee to avoid a hit?
I think you misread my original proposal. What I’m saying is, if a player takes a knee, that’s fine, so long as it’s done right away. Once he starts running he’s fair game.
If however he runs around and then runs out of the endzone without being forced out, then that would be a penalty.
Taking a knee is conceding a point while signaling to the opponant that you’re no longer fair game for a hit. So taking a knee after running around is exactly the same time wasting as running out of the endzone. That’s why I think that not taking the knee right away should be a penalty as well. We’d seldom see that situation anyway but you need to have the situation covered in the rules.