I don't have particular issue with anything that's been done, except to ask this question: Apart from the swap, what concession is the Cuban government making? To wit, this administration shows a pattern of acting in good faith with bad actors all over the globe (Russia, Iran, China, Afghan Taliban, Cuba et al.) making concessions and getting nothing substantive in return. Long term, the economic normalization is a good thing. Short term, capture an American, hold as leverage, get what you want.
"Soft power", indeed.