The law may be the law but you still need someone to complain to the authorities.
If I went out into the street and 'keyed' someone's status symbol car then I would not be in trouble until someone decided to do something about the crime.
The owner might not be pleased and, pressured by the insurance company, might get the police to go through CCTV and finally find me caught in the act.
Alternatively, a neighbour or passer by might just call the cops on me whilst I 'brazenly commit the deed'.
Either way, unless there is a report of wrong-doing then I would be getting away with it, not having to be fined etc. The police don't just sit there idly looking through the rule book looking what they can nick me for, someone would have to bring matters to their attention.
And that is the problem with this EU ruling. Nobody I know has bought a phone, decided to write to their MP (or MEP) and complained about not having Bing! as their default search engine. The EU don't accept complaints from little people like that anyway.
So what has gone on here is that some group of lobbyists have sought out some money from the Microsofts of this world, invariably to setup some fake pressure group, to bring on this legal action. With previous history, e.g. bundling in Windows, the modus operandi was the same, albeit with Netscape being the whinging ninnys.
Whwn the story finally hits the press the parasitical legal firm, the fake consumer group and who fronted the cash to pay for the action get forgotten, instead debate concerns whether the E.U. is a load of rubbish, being as silly as when they banned bent bananas and had wine lakes or whether Google have been truly evil.
In The Emperors New Clothes the people that sold the expensive invisible thread leave the story so in the final act there is just the stupidity of the crowd and the stupidity of the Emperor, story facilitated by the boy. Similarly here, the people that have wreaked this carnage have left the story a long time ago.