How does it hurt Cuba’s economy that people can’t do business with them? How does it hurt Cuba’s economy that the most powerful country with the most influence over the world doesn’t let people do business with Cuba? How does it hurt their economy that its a pain in the ass to travel there? You must be joking
But things that help them grow food does fall under the embargo, such as farm machine parts, gas, and tools. Also, it's still hard for them to buy food because the US males it hard to trade money, use banks, or send money back to Cuba.
Not even the CIA believes it was the fault of Cuba “In January 2022, the Central Intelligence Agency issued an interim assessment concluding that the syndrome is not the result of "a sustained global campaign by a hostile power". Foreign involvement was ruled out in 976 cases of the 1,000 reviewed”
Also the embargo started way before 2016 so what weird point you have there to try and justify the richest government in the world punishing one of the poorest countries while it also bombs countless other countries.