Forget the praise of Castro. His entire message is what he said in that video which is what the communist country of Cuba is. Very bad for him. Will be bad in the GE as well.
This is sort of an exaggeration. He praised some of his policies, not Casto himself.
He still praised some Communist policies during the Cold War which is really bad for him, especially in the US. The Republicans will have a field day with that.
For this debate to be so skewed in Bernie's favor, with Univision letting him speak longer than Hillary and get the majority of the last statements of each topic, she really overcame and came out on top at the end. Those last 15 minutes really saved her