I don’t read “have even a middling amount of kitchen experience” as being a decent cook. IMO, a decent cook doesn’t really need full recipes they can just wing it based on a basic idea, but it takes a long time to get to that level.
I may be biased though, "skim a recipe and wing it" is my default style anymore after all.
Think easting something in a restaurant then replicating something similar at home the next day just based on the flavor. Doing that for a few things is easy, but it takes significant time to get to that level across a wide range regional cuisines.