That's a pretty atypical example, you've put the errors in exactly the right places. Imagine that string was

  *r* *o* ***y

or

  a** y** *k**

and you can see these are indecipherable and this is not a good example of "error correctable language".

Error correction in language typically refers to understanding through context (i.e. other sentences), which would not be lost in this sort of compression.