A good thing from whose perspective? From the perspective of US it would always be a bad thing. Why would you ever want to concede something and limit yourself without proportional concessions.
Soft power isn't a thing. As people have recently pointed out with the USAID situation: helping someone and then stopping the help is far worse than not helping at all. Therefore, soft power isn't power, it's actually more like soft debt. Every time you do charity, you add on to your moral obligations. The less charity you do, the fewer the requirements on you.
Certainly, and in fact no soft power operation can be distinguished from something like this (because a front would deliberately be disguised as a soft-power operation) which renders soft-power operations useless to develop soft-power. And when it is removed, one can either reasonably conclude that the underlying operation is no longer necessary or one could react with how it's worse that they took away something they promised.
In no case will anyone ever say "Well, I am not happy it is gone but I am grateful for all the work they put in to help out of a desire to be good guys" so soft power isn't a thing.
To be clear, I have no quarrel with you on the belief that they're fronts. I only mean that they do not develop power of any sort.