It's quite reasonable (I think) to say that "covert" photography can be an intrusion; and if it becomes a nuisance, I think it's equally reasonable to say that the Law should make a statement.

What I find hard to judge is how much of a nuisance it really is.

OK, I'm not a chesty 17 year old blonde. So, understandably, nobody has ever followed me around with a camera. But then again, I can't think of anybody who has ever shown me a picture of such... is it really a problem?