Portugal have only themselves to blame for this awful performance and, honestly, their tournament as a whole.

They appointed one of the worst coaches out there.
Leão had a great game last time out, yet he was benched.
The midfield trio of Bruno, Neves, and Vitinha didn't work in any of the four games, yet the manager kept sticking with it.
Ronaldo kept making good runs but was constantly ignored.
Even after going 1–0 down, they still refused to put quality crosses into the box, despite using that approach to win their last game.
They deserve to go home, unfortunately. A truly shambolic performance.