Top two as in the two finalists?
It's not really a terrible idea, but if that means those two teams sit out of qualifying then denying them of two years worth of competitive internationals is a bit a blow to them.
And hey, it'd at least be much better than the Euro qualifying which gives a place to every nations league division. Just imagine Liechtenstein going to a World Cup (while a nation like Italy misses out)
It would likely work in the same way as it works for the Euro 2020 qualifying, namely that the Nations League is a failsafe. All teams will participate in the regular qualifying for Euro 2020, but if the winner of this week's Nations League final somehow failed, they would get a Euro 2020 spot. If the Nations League winner qualifies normally for Euro 2020, then the next-best team in the Nations League inherits this spot. Such a system drastically reduces the chances that a Division A team does not qualify, because most of those teams won't mess up the regular qualifying.
As far as I understood it, the "one team per division will qualify for Euro, guaranteed" rule is a special exception because of the 60-year-anniversary of the European championship for national teams. It has to be seen if they'll do it again for Euro 2024.Last edited by RolStoppable - on 07 June 2019