I think this is just a pattern with companies that have high numbers of employees. Facebook is just as inaccessible. Although I suspect that it's hard to troubleshoot Facebook to begin with since the particulars of their product changes so often.
It's because once a company gets to be over a certain size, everything is part of a process, and processes tend not to care all that much about their participants. When you get really good service from a company, it's generally the individual service rep going above and beyond what the process calls for, rather than the process being one that delivers good service.