Sure there is a difference but when it comes to large corporations you would expect them
all to plead ignorance citing a wide array of excuses regardless of their actual involvement (or lack of) in others breaking their terms and conditions.
As for the excellent analogy you stated, I think giving you the car as a loan without knowing you were going to rob a bank does not provide defence because the prosecution will try their best to demonstrate there was collusion even though I was innocent. Would a jury accept it? I do not know but I would not be the only innocent person imprisoned.
Many people view this as double standards being implemented by law enforcement agencies that allow some tech giants to get away with dubious conduct but aggressively pursue others for reasons that cannot be understood.
There is a difference between a platform being hardly moderated and the police / government showing up and saying your platform is being used for a crime here is the what we have about when and where and how the crime is being committed and all you have to do is show us who.
If ask to borrow your car and you say yes and then I use it to rob a bank you are probably not going to be charged with anything.
If the cops show up BEFORE I ASK and tell you that I rob banks and borrow peoples cars to do it and they found out I am going to rob a bank later today and you still loan me your car then yeah, they are coming after you too.
-Dave