It think its more that they are examining the condom to make sure that its intact and also to clean up the baby batter. Just one sperm can do a lot of damage.
Its been my experience that generally the only time that I've taken off the condom is when I haven't cum yet. The only exception that I can think of is one of my first punts where I quickly removed the condom and flung it towards the bin before the lady noticed. Next thing I knew she was frantically plunging thumb and fingers up her pussy looking for a lost condom. Even after I told her that I binned it, she continued her search, finally realising that I was telling the truth. After that experience I've been happy to let the ladies do the clean up.
To anyone that doesn't like me here.
I hope you need to pee 3 times tonight, but that you only wake up twice.