No, I'm saying that "slim and beautiful" and "easy to access internal parts" are contradictory design goals. The slimmer and more beautiful it gets, the harder it is to get at the insides, and vice versa.
There are two ways to deal with this design problem:
1) Compromise, resulting in something that excels at neither
2) Make two machines, one optimized in one direction, the other in the other.
Apple have chosen option 2, because their philosophy is not to compromise. Other manufacturers have decided 1) is the way to go. Neither party is being unreasonable. Neither is wrong. You are free to choose whichever you want. If you want a machine that a child can open, buy one, from Apple or someone else.
Let's use the hackneyed old car metaphor. "Fast and sleek" and "able to pull a caravan" are incompatible design goals. You can compromise, or make one of each. Porsche went for option 2. They make a fast and sleek car, and they make a car that can pull a caravan. You are free to choose, or to find a manufacturer who makes a car that compromises.