The collapsing Pound - some perspective

The BBC are screaming about the collapsing Pound. Here's some perspective:

The Pound closed against the dollar on the 28th February this year at 1.3863.

It now stands at 1.3792

That's a fall of just over half of one percent - 0.512% in fact.

I don't remember the BBC calling this a disaster in February, why now?