This is true but it has been fascinating seeing them trying to catch up. Necessity being mother of invention, all of that.
It is still hard to get much of a clear picture on how well they are doing on this stuff. Chinese companies are saying they are near parity, the opposition says they are 15 years behind, the reality is probably somewhere in between.
While they have made a lot of quick progress, that is no guarantee for future gains.
My worry is that they're not bringing anything new to the table except "this is actually possible if you will it".
On the flipside Canon's Nanoimprint Lithography promises lower cost, even if their feature size is 15nm in practice. They also appear to be having competition now:
Recently Canon shipped the first commercial device and it appears that this path will see continued development. 15nm(14 advertised) is already good enough for, say, automotive applications.
It is still hard to get much of a clear picture on how well they are doing on this stuff. Chinese companies are saying they are near parity, the opposition says they are 15 years behind, the reality is probably somewhere in between.
While they have made a lot of quick progress, that is no guarantee for future gains.