"it does seem to explain why people found the game so unplayable."
I'll admit to being one of the people who actually played this all the way to the end. I fell in holes (but I learned how to do it when *I* wanted to), and I found flowers. Hell, I even found a flower once in a hole that, instead of doing what the flowers normally did, turned into a Yar (protagonist from Yar's Revenge, a sort of pixellated fly) and flew up the screen. And before you ask, no, I couldn't tell you how I did it. That was more than 30 years ago, and I only did it the once, so I have no idea what pattern of activities caused it. Overall, though, I'd say it wasn't such a bad game, aside from being a trifle repetitive (and these days I play MMORPGs, so I can't complain too much about repetitive activites...). And I consequently don't get the way people pile so much hate on this game.
(I also found the dot in the 2600 game Adventure, and carried it to see the Easter Egg.)