The fact the police were 'pursuing' suggests that if a) they had managed to stop the vehicle before, or b) weren't chasing then this tragic event might not have happened.
Cudda, shudda, wudda.
What if the police haven't tried to stop the car and it went round the corner and killed them anyway cos they were speeding, high, we're in a stolen car etc etc etc. gues what you would be saying then. . .
"if the police could be bothered to stop cars blah blah blah"
To suggest this happened because of the polices actions is frankly ridiculous. But I'm sure you are right, those officers had nothing better to do. They were trying to stop it for shits and giggles.