What exactly was Lando trying to do? The gap was closing; he should've known better than that, and to tunnel-vision and crash into your teammate like that is a worrying sign for the rest of the season to me.
I feel like Lawson might actually have a better shot of staying in the Red Bull program than Tsunoda. Considering the fact that Lawson was tapped for a promotion despite Tsunoda being readily available, and the two not being super different in terms of pace, I could very well see Tsunoda be kicked to the curb due to Red Bull's lack of faith in him. As for who would occupy the second Red Bull, that's a tougher question - perhaps Red Bull choose to put Hadjar in and exhaust the 4-driver rule, or maybe they keep Tsunoda and none of this happens.