Civil law countries don't like textualism. The spirit/intent of the law can often trump a literal interpretation of the text, so all this grammatical arguing is moot.
If we can ignore what the law says in favor of its spirit, then the law certainly means that the EU can "shut off" e2ee at any point, given their track record. Second, even if the above is false, it doesn't matter as whoever gets to decide "the spirit" of this law can say that it doesn't apply to terrorists, or doesn't apply durring x type of situation.