Trump was listening to his scientific experts, such as Dr. Fauci who is also on record saying Coronavirus was nothing to worry about.
Even early on while he was saying it was no big deal, Trump suspended travel coming from China. And launched a task force to monitor the virus.
As the situation evolved, Trump's position changed, which is rational in the face of more data.
It's the media who criticized Trump for his not taking the virus seriously, when they didn't take it seriously. And they allege he ignored the experts, which he didn't.
You can change your position on a topic as more facts become available. That is not hypocrisy, and that is not what the media has done.
The media said the exact same thing Trump said yet they criticize him for it. That's hypocrisy.