"I don’t know if it will work; data centers are about the density of processing power, which is related to but still different than performance-per-watt, ARM’s traditional advantage relative to Intel, and there are a huge amount of 3rd-parties involved in such a transition."
But isn't performance-per-watt starting to become more important than the density of processing power which is limited by your power consumption?
They have been buying some other data center/HPC companies as well this year like Mellanox and Cumulus, to me it almost seems like they want to own the entire data center stack and eventually provide a similar offering as AWS, Azure and Google Cloud.