Was it ok?

[delta s4]

Actually i think that the first crash was caused by "Champion.x3", he brakes a bit later than everyone else, and if you notice he isn't pointing at the turn when he brakes, but to the middle of the track. That crash could've been avoided if he waited to fight position instead of being a third racer on a tight turn. That's my view of the incident.

That second crash seems to me a small revenge for what Sam says next "2 time craskedby your fault".