Green mirroring blocking Xfinity stream

There is absolutely no harm being done to the Xfinity Stream app when allowing screen mirroring of CNN News to a television and there is no reason whatsoever to block screen mirroring when trying to mirror the news from the Xfinity Stream app to the television. It is funny how no Xfinity associate can give a logical decent answer to explain the reason why screen mirroring isn't available with the Xfinity Stream app, but for the amount of money that we have to pay as customers on the monthly basis, screen mirroring should be allowed since it causes no harm whatsoever.