I read these comments and wonder where they're coming from.
The main reason Intel would do this is to head off any non-x86 (ARM) from gaining traction. Once it does, software gets ported to it, and it can move upstream relatively easily. It's best just to head it off before it appears, because once it develops momentum it's much harder to stop.
Next, the purpose of these low performance processors is not to somehow equate to the processing power of higher end processors, using more threads. People just don't get it. There are many workloads that are i/o based, not processor based. Do I want to waste 45 watts on something that's not using 10% of my processor capacity, if it's always waiting on the hard disk anyway? File servers don't need powerful processors in many situations, and it's not about getting 48 Atoms to equal a high-end Xeon. One Atom equals a high-end Xeon if the workload doesn't require much CPU time, and the Atom costs less, costs less to run, and costs less to cool.
There's a place for both, obviously. I still use a K6-2 on a server. Why? Because it wouldn't make any difference if I replaced it with something else. There are plenty of workloads like this, where the performance depends on the hard disk, not the processor.