Well then, I guess you're just intentionally misquoting it to drive confusion or something. "Difficult to do something" and "difficult to accidentally do something" are two radically different concepts. Typing in a password is easy, accidentally pressing random keys and having it be the password is hard. Pressing delete and then typing "delete me" and then clicking OK is pretty easy, accidentally clicking random spots on your screen and jamming random key presses and having it accidentally get deleted is hard. You may still have deleted something you later decide you shouldn't have, but you absolutely intentionally issued the delete.

Putting a cover over a button that can still be flipped open is a real-world example of making something difficult to accidentally do while still making it easy to actually do it. You pretty much have to want to press the button, you're not just going to set something down and accidentally trigger the button. Do you really disagree about that? How is it not making it more difficult to do on accident?

Or like my lawn mower example. How would I accidentally start the mower? You can see it would be difficult for me to accidentally start the mower, right? My hand wouldn't just brush against it and have it start going, correct? And it has a few other interlocks, such as the handle needs to be fully extended and locked at the right angle; you can't start it when its folded up. And yet this two-stage motion is still really easy to do for most people with two hands, right? And it's clearly documented on the mower how to do it with obvious glyphs that show it will start the blade.

And with the button cover, I wouldn't just end up leaning against the console and accidentally pressing the button, correct? But one can trivially just flip the cover and press the button still, right? But we made it more difficult to accidentally press it?

Meanwhile, they could have made it significantly easier to accidentally start the lawn mower. They could have made it without those interlocks. They could have just made the handle capacitive and any light brush with a hand would have started it. The button with a cover could have been made bigger and more sensitive and placed exactly next to where people naturally rest their hands or on the corner right at knee level ready to be bumped with no cover and unlabeled. So in these cases, its significantly harder to accidentally do the action than what it could have been, meanwhile still being generally pretty easy to do if you're intending to do it.