Is there an absence of a logical link between 'There is nothing ungrammatical or wrong about saying  She's a real Johnny-comelately,  but it grates.' and 'I'd rather you use a different way to phrase, "She's a real Johnny-comelately."'
There is nothing ungrammatical or wrong about saying  She's a real Johnny-comelately,  but it grates.###I'd rather you use a different way to phrase, "She's a real Johnny-comelately."