It was never intended to cover 2 rounds.
The only time this was a thing was at the World Champs when the 3rd round was still running when the 4th round started.
Otherwise it's just a day by day, or round block (like today QF through to Final) process as it has been since the competition started.
I just thought locking the blues in from the off would be easier. Given it created confusion it wasn't. And given I'm not confused as I'm running the competition, if I can save confusing you guys then it's a bit more obvious to just do that