Sure but the tensions between China and the US never went away. You may not have Chiang Kai Shek seeking US support in order to invade the mainland. That much is true. However, the US is still very much interested in keeping Taiwan within its sphere of influence as part of a militaristic strategy of containment aimed at China.
I don’t think the US state department cares much for the welfare of Taiwanese people in all of this. If you have any doubts about how the US operates all you have to do is look at its relationship with Israel today.