Yes, the aim is to keep a private key in another form/representation which is easier to read and write/type. As an example the BIP39:
"legal winner thank year wave sausage worth useful legal winner thank yellow"
would be equivalent to:
"iqogu sovyza cusydy huvifi zyhole suvyfu je".
BIP39 is considered easier to read/write because it contains actual words that can be read and write without mistake. Like the word "legal" in your example. The user already knows this word and its spelling. So they just write it in an instant.
However, your result doesn't contain anything that is easy to read or write like "iqogu". It is not a word, but just random letters. So the user has to write them down one by one with a high chance of mistake.
In other words there is no difference between "sylui duboli kufuzu..." and "C85AFBACCF3E1EE40...." in how easy it is to read or write.