What is the point of a stroller cover?

I hate stroller covers - especially when poor baby ise facing away from the person pushing!

Today I once again saw a poor little mite struggling with a muslin wrap that had been draped over the front of the stroller and was flapping in her face (I presume it was a girl she was wearing pink). Why? She was not making a noise but she was clearly annoyed by this piece of cloth - and wouldn't you be?
What is it with these drapes over the front of strollers? I don't like strollers that face the baby away from the pusher anyway. Going for a walk with baby is a wonderful opportunity for interaction with your child - unless he or she is asleep - and then it is an opportunity for you to enjoy the satisfaction of gazing at and pushing a sleeping baby! When baby faces you she can interact with you - but not if there is a great piece of cloth - or worse a huge black shadecloth cover clipped firmly between you and she. When baby faces the pusher she generally doesn't have the sun in her eyes - and if she does then she can wear a hat - and most strollers have a shade. Whatever happened to stroller parasols? These clip to the side of the stroller and can be moved to shade baby's face or body without blocking her away from the outside world.
I would like to see stroller shade cloths go right out of fashion! For the sake of the babies of Australia I would like to see pushers and babies enjoying each other's company. The only worse thing than a baby screaming behind a black shade cloth stroller cover is the pusher on the mobile phone at the same time! What an awful way to treat your little person who is so inquisitive about the world around her, who would love to be talked or sung to as she was pushed along - and who will learn so much about the world around her from her stroller if only her parents would let her.
I believe the use of these things amounts to sensory deprivation! and I think they should be banned.