Completely agree about the prep. It's not a modern phenomenon either. Even 1960s mainstream influencers like Julia Child were showing people how to peel and incise the stems, pan fry with butter, salt and olive oil oven roast, serve with various sauces, etc.
What changed is the marketing around home cooking. Now everyone aspires to be their own private chef. It's understandable for people living in the mid-20th century western world to see all this as a bit pretentious.
The goal back then was just to get a decent healthy meal on the table. Any flourishes such as adding bacon, duck fat, or whatever else were likely seen as unhealthy, inaccessible, or just plain weird.