That's not actually what the reply said, it was extremely noncommittal as you'd expect. If you contacted one of your MEPs they might have a stronger opinion they'd want to promote, but the DMA team are just not going to render judgement based on one email.
But my initial reading of F-Droid's explanation was "hang on, Google are going to get slammed for the same thing Apple got slammed for" so I hope they do come to the same conclusion and do it quickly, before F-Droid is entirely dead.
Maybe that's Google's intention - that the time lag on enforcement is going to be long enough that they achieve half the goal anyway.