There is always some way to make a game easier. Look at the characters they added to Mario Bros. U DX. One which doesn't get hurt by enemies (but can't use powerups) and another which gets a super-power up which only they can grab. I thought these were good additions, there's nothing wrong with more choice.
That said...at some point, making games easier will only allow you to "access the content" of the game, if you see that "content" as artwork, music, cutscenes, etc. If you see the content as a gameplay experience, you would be breaking the developers vision and not really have experienced the game.
Nothing is stopping you from filling out a crossword puzzle by looking at the answers, and the crossword book publisher doesn't care as long as you buy it. However, you missed the point in the first place, taking an opportunity for mental challenge/stimulation and replaced it with busywork to fill your time.
As an analogy, I would encourage a kid to start with an easy character in Mario, and also to fill in a lot of free answers in a crossword puzzle to get a grip on how it works. So, yes, let's have the option please. But I wouldn't delude myself into thinking I was "experiencing" either type of game with those kind of training wheels. I want this feature for 8 year olds, but know it will really be for journalists.