This is troubling, and great at the same time. For one, it's troubling that she took the case in the first place. Another judge was already involved. This judge could find herself in an obstruction of justice case of her own. Contrary to popular belief, being a judge doesn't shield her from that possibility.
The DOJ will probably appeal her ruling, so I doubt seriously they will stop the investigation, in light of her stay.
It's great in the fact this keeps Trump front and center in the news cycle, taking all of the oxygen out of the room for Republicans in the midterms. Now Democrats control the campaign messaging space in the news cycles, with President Biden out front leading, and pro choice candidates, now being the loudest voices.
Kind of hard to mount an offense with Trump having whine and cry rally, after whine and cry rally over his 2020 election landslide loss, and trying to make those top secret documents less important than Melanias underwear.
I'm not seeing any downside to this for Democrats.
I'm not seeing any upside to this for Trump, or his judge.
And the Judiciary just took another hit to it's already dwindling credibility.