I don't think it has anything to do with if you can't beat them join them. They were effectively equal. Intel was just being far more honest about it based off previous measurement standards. If anything they should be commended for not using marketing tricks.
The new method of lithography measurement should be based on Transistors/mm^2. Or as Intel used to use before this change unless they keep this going, MTr/mm2(mega-transistor per mm squared).
Or if you want to follow a different way if measuring the industry should adopt LMC, though it's more of a system measurement for CPU/RAM purposed by nine authors from Stanford, MIT, Berkeley, and TSMC. It does have it's own downsides though but at least it would be standardized
https://ieeexplore.ieee.org/document/9063714
Yes, but as things have moved on it has become clear that there is more to lithography technology than transistor density. While I agree that nm is a bad metric, it conveys the point that manufacturers look at.
For example, GF12nm is an optimised form of 14nm that can offer more performance and silicon density. Hence 12nm. TSMC 6nm is an optimised form of 7nm that can deliver some more density and performance, hence 6nm. The numbers may be marketing, but it conveys the required message, albeit inaccurately.
TBH, there is no single metric that can be used to convey the right message, as both silicon density and performance matter. There is a reason why only 10nm Enhanced SuperFin will be called Intel 7. Intel's other 10nm nodes weren't even good enough for huge scale production. There is a reason why Intel has launched 14nm CPUs this year.
Transistor density alone is not a good enough metric, and while the "standard" nm naming scheme is not accurate it is understood, which is the entire point of the naming scheme.
The expectation is that nodes with smaller numbers are more transistor dense and offer performance/watt improvements over their predecessors. Going beyond that goes above the paygrade of most folks and anyone actually building processors can look at the full specs of each node.
At the end of the day, Intel's name changes are just marketing. It is them getting away from the 14nm+++++ era and into something new.
Should Intel be commended? Not after their prior attempts at 3rd party manufacturing. Node names with less marketing spin is a small deal when compared to that.
Remember when LG planned to use Intel 10nm to make mobile chips in 2016? Now that was a disaster that Intel did a great job hushing up. Now LG has exited the phone industry entirely... Intel had other customers planned for their original 10nm node, it was a disaster.
https://www.vox.com/2016/8/16/12507216/lg-chip-manufacture-korea-intel