Thats not what you said, That I could agree with (we dont allow Mac Desktops for that reason at my office). You said Macs were crap that cause too many networking problmes (saying they are harder or worse at networking than WinTel.
Macs network with each other very easily. They don't always "play nice" with other computers. That's more of an issue with a network running off a Windows server, I believe, but it is definitely true.