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.
My wife caught me wearing ladies underwear and threatened to leave me.
So I packed up all her clothes
And left.