I’ve never been on a yacht but seen plenty but no where near that size. Probably that was in Cannes years ago but all motor yachts.
The variations in wind speed as you go up a mast of that height, a lot.
The best sailing ships of yesterday were the Clipper Ships which were built for speed carrying cargo it Tea etc.
The fastest ones of today are the one built for the round the world races or the Americas Cup races.
No doubt there are very very fast ones built just for speed, probably those that rise up on foils.
I would suspect that these days due to climate change tall masted vessels unsafe as well as a lot of others. Conditions getting beyond design limits.
When after diving out on the Farnes for many years I know how suddenly the weather can change out of the blue.
Twice it could have been Nasty, and about another three times decided to get back to harbour as things not looking good.
Of course we were all in diving suits and safety gear around us.
However on one of these big yachts you have people how do not have a clue. It takes only one to absently leave a door open etc and that’s it.
Allan C.