YABU to a certain extent. WRT to pressure placed on women, yes, this is wrong. Women should be educated, empowered and gently encouraged towards a labour and birth with reduced intervention, not pressurised.
Just a few tidbits of info:
Babies can absorb a certain amount of the drugs given to mothers during labour, which means they are sometimes born drowsier - not sure of what other effects this has.
Excessive intervention can, as others have said, cause more problems - it's not called the 'cascade of intervention' for nothing. It interferes with the body's natural processes - we are mammals, and so, like mammals in the wild, our bodies NEED peace, quiet, safety and respect in order to give birth effectively. When the body is allowed to work in the way it is designed to (for example, with minimal stress and pressure place on the birthing woman - ha! When does that ever happen in hospitals?
), the outcomes in most normal birthing situations are better for mother and child.
What clinicians don't admit is that a lot of the birthing problems are caused by excessive intervention. And yes, they have methods to rectify it in the end, but why rely on rectifying a problem that you've inadvertently caused? Why not just not cause it? It would save them a lot of money as well, so generally speaking it should be win-win.
You need to read more than just NCT leaflets if you really want to know what you're talking about. I highly recommend Ina May Gaskin's Guide To Childbirth.