
Not very reassuring
The future of quantum computing apparently relies on the discovery of a theoretical particle that is its own antiparticle. That seems to be quite the barrier to entry.
On the other hand, "they were unable to replicate their study’s results " means that the study was clearly not conducted in a scientific manner. When you're a scientist, you're supposed to check, double check and, in a case like this, triple check your data and your results. When you can reliably replicate your results, then you can publish.
So this was not a proper scientific study. It was, however, a perfectly valid Microsoft study : throw something on the wall, see if sticks, publish.
Way to go.