I think this article slightly misses the point. If the architecture was actually failing - that is, if it were dumping core when running regular workloads, or

I think this article slightly misses the point. If the architecture was actually failing - that is, if it were dumping core when running regular workloads, or crashing, or corrupting data - that would be a real reason to not use it. But it seems like it's simply slower than they'd like, plus there are features they want (better casing, better LEDs, remote management). These don't have much to do with actually running code. Speed isn't everything. We don't put supercomputers in to space - we put slow but extremely reliable processors in to space. Slow and reliable is much, much more important to space and financial (non-trading) applications than fast and not-as-reliable.