I think this statement is saying that the US surveillance laws grant the US authorities unlimited access to the personal data of non-US citizens being processed in the US, and those surveillance programs do not respect the privacy rights of EU citizens. Which seems fairly obvious...

In the view of the Court, the limitations on the protection of personal data arising from the domestic law of the United States on the access and use by US public authorities of such data transferred from the European Union to that third country, which the Commission assessed in Decision 2016/1250, are not circumscribed in a way that satisfies requirements that are essentially equivalent to those required under EU law, by the principle of proportionality, in so far as the surveillance programmes based on those provisions are not limited to what is strictly necessary.

On the basis of the findings made in that decision, the Court pointed out that, in respect of certain surveillance programmes, those provisions do not indicate any limitations on the power they confer to implement those programmes, or the existence of guarantees for potentially targeted non-US persons. The Court adds that, although those provisions lay down requirements with which the US authorities must comply when implementing the surveillance programmes in question, the provisions do not grant data subjects actionable rights before the courts against the US authorities.