You are more than right, and not only. Some of the worlds famous designers don't even go yachting, and some even declare themselves yacht haters, like Terence Disdale; he prefers river fishing.
But often we could see designers moving from the "big name" studios and pulling with them misteriously "the hand" of the studio. Like Disdale again-he's an interior designer, but he did exteriors as well...how? And then suddenly there is a "new" designer on the market designing with "Disdale" style

? I tell you, it's not all gold that shines

!!!