I suspect if were a lesser rider and it were do or die for the podium more acutely they would've asked Van Aert to wait.
I think the issue with Van Aert in the Tour is a bit overplayed because Belgian media are really playing it up for the green jersey etc.
WvA's personal ambition (& its impact on the team) in the 2021 Tour de France is confined to "what if" scenarios only because Roglic hit the deck hard & was badly injured.
But straight off the bat it was crazy from a GC perspective to allow one rider (WvA in this case) to pursue stages & the yellow jersey itself in the first week when neither were in the interests of their GC leader (Jumbo have some responsibility in that as well, especially after the crashes which had weakened them). That stage 3 disaster was a total train wreck, with Gesink's DNF, Roglic losing WvA's wheel & getting bumped off the road, the entire JV team pulling with Roglic to minimize the time loss whilst WvA himself chased the leader group solo 30 seconds or so up the road after the later crash which eliminated Jack Haig. But the very fact Roglic was so badly hurt (i.e. a fact WvA didn't know at the time...) means WvA is basically absolved of any responsibility beyond that moment.
Vingegaard was just never the "challenger" to Pogacar who could demand total commitment from the rest of the team, i.e. at that point, WvA served Jumbo Visma best by going for stages himself. Because Vingegaard is no Roglic & even though he was the GC leader at that point, he wasn't going to win the Tour unless Pogacar crashed out. But there's small details (& yes, the Tour 2021 adds to them, as do his later comments about his objectives next year) & a bigger picture here regarding WvA which demonstrate his limitations in terms of team leadership. And the current totally unnecessary fallout with Evenepoel is part of that same leadership question mark over WvA's head.
I'm talking on a human level of course because as a bike rider WvA had every right to demand WC leadership. But there's always a price to pay in terms of keeping everyone happy, especially when the result isn't there (& that price in a defeat is always a form of contrition). The road race world championship loss was WvA's & his team manager's. Not Evenepoel's.
Ergo putting pressure on Evenepoel again via the media 4 days after the defeat is just wrong considering what happened (& what didn't) on the road.