Presume everyone wants to be the fittest. That drill is perfect in-game replication for them, don't think it would work as well for us if we aren't going to charge round like nutters during matches.
However, same as us going down without Covid, Leeds were clearly on the way to blowing promotion again without it.
It's unsustainable the way they play, it physically cannot be done unless you have a bigger squad.
Other teams this season will meet Leeds on a day when they have no legs and beat them handsomely.
Great to watch when it works though, a lot of fun, and a lot of dominance.