Not a physicist, but Hossenfelder didn't clarify well that, unlike previous proposed solutions, this one only relies on standard quantum mechanics and general r

Not a physicist, but Hossenfelder didn't clarify well that, unlike previous proposed solutions, this one only relies on standard quantum mechanics and general relativity, not strings or LQG. Similar in spirit to Hawking's original approach, which she did mention. She seems to have a beef with extrapolating (even well-accepted) math, rather than doing experiments. But this kind of work clarifies where the theories clash and break down, how they can work together, maybe even testable predictions. I wonder if she would have been critical of the Casimir effect, back when it was thought to be untestable.