The big mistake that Charter Communications has made in its suit from the New York Attorney General, which claims it misled consumers with advertised broadband speeds, was to fight it at all. But the company was Time Warner Cable then, and it had already dug in its heels and claimed that black was white and denied everything. What it might have done is gone for mitigation as the new parent arrived, agreeing to a settlement and also promising to work with the Attorney General to replace the 900,000 or so modems at the heart of this disagreement. It may not be too late even now. The New York case dates back to 2012, but really materialized in 2016, when some…