Your full of it mate.
Nowhere in this act does it refer directly to a referendum and how to interpret legality or illegality. If you want to quote the act, quote the passage(s) where this is referred to. I will gladly read and reply.
Quote: The bill of rights is there to limit the powers of the Monarch and uphold certain constitutional requirements of the crown to seek the consent of the people, as represented in Parliament, unquote. It says so in Wikipedia where you got it from.
MP's now have input to come up with a suitable solution and vote through legislation on exit from the EU. Miller had his day in court and won and its now with MP's to decide.
You remember, the MP's representing the people in Parliament as part of the Bill of Rights. The MP's who will vote on the legislation, not the peoples vote after the MP's vote because that would be wrong as that's not stated in the Bill of Rights, which you are upholding.
You can't have it all ways. If the MP's vote through Brexit legislation and you're not happy with it, although it was done using the acts and rights you quote and support, you want another vote to tell the MP's that they are wrong if you don't like the outcome of the vote and the contents of the Act.
Like I said, you're full of it mate.