IMHO - I think a lot of difficulties come down to differences in definitions. What one person thinks is 'crying', another may just think is grizzling before going to sleep, therefore the parent using and promoting 'CC' may not really be using CC at all etc. But you know your baby the best and you know what it needs. How can you possibly feel guilty for loving and comforting your baby when she needs it?
Plus I think there is no doubt that CC actually works in reducing crying but there are psychological impacts that should be understood by the parent before using CC, which is why it should be used as a last resort. Perhaps that is where that mother is at (we can all understand that I think). But why should you feel bad for not needing a last resort?
Chin up. You are a great mum.