I think they are referring to:
“We are having to do this all by ourselves as Spanish police are not doing a good enough job. They don’t even speak English. It’s been a very slow process here so we need the British police to come out and help them,' she told The Times.”
Which was quoted in the above DM link and they linked to The Times.
I somehow missed that quote in the DM link and I believe you are correct in that is likely what they were referencing. Still this is one quote likely made in frustration after doing everything she could to find Jay and failing. If this is the only thing she has said I still think the media has been playing up the "Slammed local police" angle for their stories when it is more than likely just an offhanded comment made in her fear, frustration, and panic.
Again she is young, and this is a traumatic experience that she is going to have to live with for the rest of her life. I just really feel for her, I couldn't imagine how I would react in her position so I don't think it's fair to call her entitled or critique how she's handling the situation.
It would be far easier for her not to engage with the media and not make herself an advocate for Jay online, but I imagine she feels like she has to do everything possible to try to find him. He was the one who called her for help instead of local authorities. That is a lot of pressure to be given. That is all I'm saying.