Jensen, who coached alongside Laudrup at Brondby, says the Swans "panicked" by firing Laudrup last week.
"I was very surprised," the 48-year old told the Mirror. "I think Swansea acted too quickly.
"Maybe they need some more ice in their blood or something. They are still in the FA Cup, and they are still in Europe.
"As we know Michael is someone who loves to win cups. They should have waited and see how things went. For me, they panicked."