I have no issue with the linguists deciding that their discipline is descriptive rather than normative. Most scientific endeavours are.
My issue is with the claim that there is no sense in which a native speaker can make a grammar error. Maybe we should call them "idiolect incongrueces" I do not care.
In my language there is a verb tense that is often misused, I often misuse it and I can hear the resulting sentence I say feel wrong. That is a grammar mistake the same way missing a note in a song is a mistake.
If linguists want to work towards reducing the stigma issues of standardized grammars I commend them and wish them good luck. But that is different from saying that grammar mistake do no exist.
My issue is with the claim that there is no sense in which a native speaker can make a grammar error. Maybe we should call them "idiolect incongrueces" I do not care.
In my language there is a verb tense that is often misused, I often misuse it and I can hear the resulting sentence I say feel wrong. That is a grammar mistake the same way missing a note in a song is a mistake.
If linguists want to work towards reducing the stigma issues of standardized grammars I commend them and wish them good luck. But that is different from saying that grammar mistake do no exist.