It wasn't a hearing. We don't do those.
It was, as is every other petition to the Crown that reaches 100,000 signatures (OR 2/3 of the residents of a ward in the case of a local based issue), part of the daily business before the House of Commons. Petitions to the Crown take priority over any other business except during war time, as they have since roughly 1200.
The content of the petition was, of course, stupid. There is no law against stupidity, but there are laws on the correct handling of petitions. It was dealt with correctly.