Because they are even more shit than England.
Maybe it was because they (Holland) lost to Iceland, twice, home and away.
I don't get England fans, it goes from stupid expectations of winning everything, to, 'shit'. Did well to get through groups, team changes meant the momentum was lost and lost to side that is really well organised on good form. It happens in football all the time.
I'd say England should expect to be top 12 teams in Europe, Top 20 in the world and that is, over years and years, where they tend to finish in major tournaments.