I've watched england and the likes of Germany get off to very poor starts in tournaments and go on to do well. England started off rank in italy, but just missed out on penalties to reach the final. In fact, they didnt start too well at euro 96, but the same thing happened.
Most teams in these tournaments dont start well, the ones who do tend to burn themselves out. Far too early to write anyone off.
They got a result without playing well, that's never a bad thing. If and it's a big if, they get to the semis they'll have a chance and you'll need a doctor.