This reads like one of those stories where "people were talking about the possibility" and then rumors of a deal being signed and people read it as "the possibility is real".
Intel has a contractual obligation to deliver CPUs for the Aurora in 2021. It is clear now that 7nm will not be able to deliver that capacity, so making a deal with TSMC makes sense. I think it is likely a lot of speculation or wishful thinking that Intel has signed a deal that they will stop developing future processes. It seems unlikely such a deal would be signed the weekend after their quarterly results where they didn't give even a hint that they were considering throwing the towel in completely. Maybe they will get there, but I really doubt such a decision has already been made.
If it is true, the US government needs to realize that fab technology is critical in a lot of ways and act to keep leading edge fabs operating in the US. If we can spent trillions on coronavirus relief, surely they can find a few billion or even tens of billions to insure such fabs remain in the US, operating under the control of US company/companies (a JV seems the most likely way to accomplish this)
Honestly Intel, TSMC, Samsung, Toshiba, and Micron ought to get together, co-develop process technology, and license its use by the various companies (sharing cost based on how many wafers each runs so the ones who use more pay a larger share so they can't squeeze the others out) It would probably take the US, Taiwan, Japan and South Korea governments working together, along with those companies, to make this happen.