I totally agree with Big Doopy and cellardoor. The wrong tactic of the Belgian coach was to put everything on Van Aert and make that public. The agreement was that each time a Belgian would accompany attackers. But nobody did when Cosnefroy jumped away. So, Evenepoel did. Much too early for Evenepoel. But that was not his fault of course, but that of the other Belgian helpers (Teuns, Benoot.....) and the national coach.
The second time Evenepoel reacted and went along with attackers, was better timed. But once it converged again at the back, after Teuns, Benoot, Campenaerts among others, initially had difficulty following, the Belgians drove like crazy behind the escapees, while Evenepoel rode briskly in front. Incomprehensible and clear on behalf of Van Aert.
And yes, Evenepoel had the legs that day to at least make it to the podium. Van Aert clearly not. That was clearly visible when Ala stings for the first time, far from the arrival.
Conclusion. Wrong tactics of the Belgian coach. With evenepoel not the right man in the counter reaction so early in the race. Wrong reaction from Van Aert during the race. And..... The Belgian coach didn't disagree with Evenepoel during and after the race (because it was his tactics ).