If you wanted to recommend a less descriptive yet more commonly known word, why not use "error" or "mistake"?

Typo literally means the opposite of what the OP wants to convey.

A typo is when you pick the right word, but type it wrong.

A malopropism is when you pick the wrong word, but type it correctly.

Always fun to see this sort of comment under an article about using the right tool for the job.

Are you imploring that 'malapropism' is too sesquipedalian and that one should generally eschew obfuscationism?

I think this is a bit of a case of "Why use many word when few word do trick?"