Re: Was officiating always this corrupt before hawkeye?
Mistakes tend to happen often
No they're not mistakes.
It can't be honest mistakes if they keep benefiting one side, usually the home side, far more than the other (which is what was the case here: the home player getting almost all the crucial benefit-of-the-doubt calls).
It was a typical case of "homer umpiring" which is a disease not only in tennis but in sports in general.