Even with the misspellings it's obvious what words you meant. If someone forgets how to write "嚔" are they just missing a few strokes but it's obvious what they actually meant? Or do they have zero clue what it's supposed to look like?
That's for situations where they had to write something by hand but didn't have their phone with them to check (otherwise they can just spend a second to look at the character), which isn't a common occurrence.