[fenomas]

Not at all - forgetting kanji just isn't similar to forgetting how to spell English words, as I think TFA made fairly clear. It's the simplest analogy to make, but it's not near enough to draw conclusions from.

The analogy I've used in the past is, you read kanji with your mind but you write them with your hand, so being unable to remember a kanji is more akin to forgetting a guitar chord or a keyboard shortcut - if your hands stop making the motions, you'll eventually forget them.

[KittenInABox]

Most people cannot accurately draw a bicycle.

[fenomas]

Yeah - the other analogy I've used is that everyone can recognize a Starbucks logo, but even if you went to the trouble of learning to accurately draw one, you'd forget if you didn't practice.