That’s a nav radar not a satellite antenna. It would be down right irresponsible (and probably illegal - I’m not really good with law concerning civilian ship) to sail a ship this size without one.
Restoration is good but there is no reason to put the crew in unnecessary danger.
The white blob on the mizzen mast is a satellite antenna. To have the vessel sail in A3 areas the common choice is to have satellite communication, and it is used for their social media and outreach.
The navigation radars is actually quite well hidden sitting on the platform of the foremast.
There is more information about the emergency communication requirements on commercial vessels for different areas of the planet here:
The original didn't have to share shipping lanes with huge modern cargo ships that often rely on their radar to go quite fast in bad visibility. Faced with adding anachronistic radar vs. dying from hazards that the original ship didn't have to face, most sailors pick the radar.
She's also big enough to be legally obliged to carry radar under SOLAS V regulations.
Satellite antenna in the mizzen mast is also an abomination. They should have dirty drawings from France instead of Pornhub.