He's a tier below the top sprinters like Philipsen/Jakobsen, these last two stages were ideal "classics" stages which were too difficult for the lightweights for WVA to survive on his own as (by far) the best finisher of the remaining riders. Are there other chances left? Yes, obviously, but (i) it's clear that he's going to have to do it basically on his own and (ii) it's far from a given that he finishes this week, if you look at the profile of the upcoming stages. You can't look past the fact that an early victory takes the pressure off in a massive way, even for a team that's mainly GC-focused. I'd much rather be an UAE rider than a Jumbo one right now.
No that's true, although I think he's relieved he "only" lost a few seconds to Pogacar yesterday and isn't that bothered by WVA not winning at all.
Looking at it again this morning on the news I think the main culprits are Kelderman and management. Kelderman looks behind him right after Lafay goes - he was probably completely empty at that point and looking for help, but even then you do everything you can to get on that wheel in front of you asap and he simply didn't do that. And Jumbo should've had Benoot and Vingegaard closer to Kelderman/WVA or even in front of WVA to act on situations like this. They were both in the back of the group when Lafay went, at that point it was too chaotic and they left it too late to get it organized, you can't call up either of them to immediately close the gap with them being in the positions they were. It should've been Kelderman-Benoot-WVA-Vingegaard (or the last two flipped), and Lafay wouldn't have stayed up front if that was the case.
Just poor execution all-around imo from Jumbo, but I guess they're still quite happy that Vingegaard is close to Pogacar after these two stages which massively favored the latter.