It's really interesting to see/hear/read the takes on how super shoes protect your feet and legs more than less-advanced trainers would do, allowing you to train harder & recover faster, rather than just shaving seconds off of a race result via better cushioning & ergonomic & power-transfer factors. If you can go out and run longer, harder workouts more frequently because you've got a pair of AlphaFly 3s or whatever to train in, versus what you'd be able to do in bang-average $120-150 non-plated trainers, you'll end up in slightly better shape at the start line. It's the same principle as doping during training and then cleaning up before a race; the hay's in the barn at that point, and the ability to train harder is what makes the difference over however many miles you're racing. TdF cyclists have totally used piles of banned substances and re-injected stored blood etc during the race itself, but if they weren't using drugs and substances to train harder and recover better during their months of training, all the dope in the world probably couldn't save them during the race itself.
My take: For 99.9% of advanced runners, especially half- and marathon runners, the slight time gain from super shoes during a race is probably nothing compared to the increased training intensity and/or volume they were able to log during their buildup thanks to choice of shoe. And for runners with naturally-high recovery abilities, or really strong feet & lower legs, it might matter way less to have super shoes during training vs someone with serious strength deficits who can only nail 100% of their prescribed workouts because they have some ZoomFlys. The only people really benefiting from racing in super shoes are probably the sub-2:20 folks who need the extra 1-3 seconds per mile to get on the podium.