Most of the complaints about the AT&T network problems came from users connected to the surprisingly robust SXSW Wi-Fi network. Recent data indicates that about 42% of iPhone data is sent by WI-Fi.
If most of the complaints were from people using the SXSW Wi-Fi network ... then what does that have to do with at&t's 3G network.... -- "Not many people know this, but I happen to be quite famous."
I took it to mean the only way they could complain was to use the WIFI network. Meaning, if you cannot use the phone networks, you probably cannot get through to bitch.