One could maybe argue that van wilder was able to go for himself in the Giro this year since remco dropped out. Not so sure if he will see it like that though.
Ideally you need to send alaphillipe, van wilder and hirt I reckon, just to not be isolated all the time.
I'll happily be proven wrong about the strength of the squad.
While the team can be absent when the going gets though, I have seldomly seen a situation where a leader is alone and a team is needed, if the leader is the best.
A team mostly helps if the leader is vulnerable and shows weakness, but this mostly happens uphill, and the only thing I see is something like Soler with his scary eyes looking behind to see if Pogacar is still following, but those situations are inevitably to limit losses when the GC win is already out of the window.
Ofcourse a team can actively help to seal the win (e.g. setting a very high pace), but you still need the best in the race to finish it off. If you don't have a team to set the pace, and you're the strongest, you're most likely still win the GC. So whether it's Soudal or Jumbo having a strong team setting the pace, doesn't matter too much; while the win is sometimes depending on small details and the team, it's often mostly depending on the GC rider itself.