I just checked the replay and the only childish behaviour I saw there was from Smiley (nofear88bg).
This is how I saw it. My opinion. (using race names)
down the straight towards chicane boss caught generals draft and overtook, but then he went in too hot and hit a tyre which sent him into the gravel on the right. General, not wanting to get involved in the crash, slowed down to avoid him. That is when smiley comes up behind, wanting to use the full racing line, even though he can see all this going on ahead of him. No adjustment in speed, or line, for the fact there was a crash ahead of him, and hits the back of general.
In my mind the only one with any cause for complaint, though very small, would be general but he didn't complain at all. Smiley spectates and then starts accusing general of slowing down on purpose (I assume he means on purpose to upset smiley)
Now the guy being called a 10 year old admin, at the end of the race, advised smiley that he had been warned about arguing. Smiley ignored this warning, continued arguing and in the end was banned.
Quite how you can say that 1 line and 1 ban is evidence of acting like a child I don't know.