Exactly. In a management context it would be called delegating, and it's generally considered an excellent skill to have - far better to surround yourself with a team of people who have complementary skills, and organise them so that they can use their best skills effectively and let you use yours, to enable the group to create something better than any of the individuals in it could manage alone, than to try to micromanage every last detail yourself and crash and burn!
It seems to me that Marie-France has built an excellent team that covers all the aspects of coaching and choreography, and part of that comes from her ability to find good people and figure out what they're best at, and then let them do it. Which was something she had to do, let's be real. Gadbois trains an awful lot of teams. If Marie-France couldn't put together a good coaching team to cover all the areas, and then step back and let it work, she'd have burnt out or died of overwork years ago.
And while I know it's human nature to look for things or people to assign responsibility to when something doesn't go the way we'd prefer, or when something goes wrong, the truth is that you can do everything possible to prevent a mistake or a problem and sometimes it will still happen. As get said on this site ad nauseam, ice is slippery, and a twizzle that flowed perfectly in practice in the morning can fall apart on competition ice in the afternoon for reasons nobody can quite figure out. And inanimate objects are sometimes intransigent. A stitch doesn't hold, a bit of fabric tears, a bootlace that looked and felt perfectly sound snaps in the middle of a program and leaves you reducing speed through all your lifts for safety's sake, and you lose points because of it. Was Bruno Massot's lace snap at the GPF his coaching team's responsibility, or the manufacturer's, or his, or just plain rotten luck? It was visually identical to the other lace; if he'd chanced to put it on the other boot instead the snap might not have happened at all.
I'd prefer to chalk up the stitches on Gabi's halter clasp breaking to Murphy's Law and move on than try to find someone to assign blame to. Every person in the team did their best to prevent a foreseeable problem but it happened anyway, and when it did Gabi and Guillaume showed they had the mental and emotional strength and physical skill to cope with it brilliantly in the moment, and Marie-France, Romain and Steffany clearly gave them all the support they needed to come back out the next day and do the absolute best work they've ever done. In my book, that's the definition of a success story. Would that I'd been able to give all of my students that great a support system and that strong a quality of resilience.