Well, that's an achievement. Really, it is. They got it to transmit data, through Earth's atmosphere and the turbulence that it contains, at 1 Gb/s. That's amazing.
I bet Starlink can handle more ground stations at once, though. And I bet Starlink does better on a cloudy day. So, while this is interesting, and a great achievement, I'm not sure it's a game changer yet. Others who know more can feel free to correct me...
From the headline, I'd assumed someone had disabled a satellite, and was thinking "is this headline mixing watts and kilowatts, or is Starlink just that fragile?"
The reality is much less dramatic, and therefore also much less likely to start a shooting war, so that's good.
Chinese satellite achieves 5x Starlink speed with 2-watt laser from 36Mm orbit (4 points, 2 days ago) https://news.ycombinator.com/item?id=44357846