That would be more in line with the actual American tradition.
But personally, I would recommend to only allow filibusters in the House, which has a more proportional representation, and to not allow it in the Senate, which has the least proportional representation, even less than the electoral college.
The continuing American embargo on Cuba after the Cold War has always been toddler tantrum level of pettiness.
I thought Obama had finally closed that chapter, but I was wrong.