This may just be a reflection of the fact that signing petitions (especially online ones) achieves very little. Sure you might get a debate in parliament about

This may just be a reflection of the fact that signing petitions (especially online ones) achieves very little. Sure you might get a debate in parliament about it but that debate could involve a handful of MPs and take a few minutes, concluding that everything is fine. This has already been debated extensively in parliament, and got voted through.