WARHURYEAHI don't follow the CSGO scene a lot but would/could flusha be banned without proof from an AC? When I used to play 1.6 and CSS some leagues would have anti cheat admins or something similar to check peoples demos and make a decision (like ETF2L). Not sure if something could apply to such a high profile player/situation.
I think the important distinction here is that people are claiming that, with how subtle the new hot silent aimbot that everyone seems to be using is, cheating on lan is a lot more plausible than it used to be.
Now, I'm still not personally convinced that any of these people with the possible exception of sf attempted to cheat on lan, but given that such is apparently a possibility, having anti-cheat admins looking at online results suddenly seems like less of a priority for the top teams that go to all the lans anyways.