Honestly...Should be top 8 leagues, imo.
I feel like the gap between Belgium/Portugal/Netherlands isn't really that big. Portugal and Netherlands have a stronger 'big 3", but Belgium has the stronger league on average with more teams capable of competing in Europe.
That, and Belgium has historically always been a top 10 ( even top 5 at times ) league.
Out of the last 5 tournaments, Belgium reached 3 quarter finals and 1 semi-final.
Just saying.