My first real ski boat was a new 1975 Nautique ($2600 without trailer) that came without a rear platform. Even my casual skier friends, men and women all who grew up on the lake could pop into the boat just like a competition diver getting out of the pool. It was effortless for most of them.
Most water skiers have been around boats and water for a good part of their life. You've develop skills and functional strengths that most other don't have.
I had a project to fix a deployment problem 68 feet down with my new submersible slalom course which could only be done from a stable position - on the ice 2 weeks ago. I had a few hours of work
through a large hole in the ice.
While planning this I realized there was a small risk of ending up in the water . . then what ? Yes this is an unusual circumstance
, but it lets you recall your levels of agility around boats and water over your lifetime. Ice-Boat owners know some of the tricks . . its part of the their sport. They sail early and late over the winter season, rarely when the ice is safe.